diff --git a/cps/db.py b/cps/db.py
index 66c289dd..98ad5898 100644
--- a/cps/db.py
+++ b/cps/db.py
@@ -59,7 +59,7 @@ except ImportError:
 
 log = logger.create()
 
-cc_exceptions = ['datetime', 'comments', 'composite', 'series']
+cc_exceptions = ['composite', 'series']
 cc_classes = {}
 
 Base = declarative_base()
@@ -473,7 +473,7 @@ class CalibreDB():
                                  }
                     books_custom_column_links[row.id] = type(str('books_custom_column_' + str(row.id) + '_link'),
                                                              (Base,), dicttable)
-                else:
+                if row.datatype in ['rating', 'text', 'enumeration']:
                     books_custom_column_links[row.id] = Table('books_custom_column_' + str(row.id) + '_link',
                                                               Base.metadata,
                                                               Column('book', Integer, ForeignKey('books.id'),
@@ -491,23 +491,25 @@ class CalibreDB():
                     ccdict['value'] = Column(Float)
                 elif row.datatype == 'int':
                     ccdict['value'] = Column(Integer)
+                elif row.datatype == 'datetime':
+                    ccdict['value'] = Column(TIMESTAMP)
                 elif row.datatype == 'bool':
                     ccdict['value'] = Column(Boolean)
                 else:
                     ccdict['value'] = Column(String)
-                if row.datatype in ['float', 'int', 'bool']:
+                if row.datatype in ['float', 'int', 'bool', 'datetime', 'comments']:
                     ccdict['book'] = Column(Integer, ForeignKey('books.id'))
                 cc_classes[row.id] = type(str('custom_column_' + str(row.id)), (Base,), ccdict)
 
         for cc_id in cc_ids:
-            if (cc_id[1] == 'bool') or (cc_id[1] == 'int') or (cc_id[1] == 'float'):
+            if cc_id[1] in ['bool', 'int', 'float', 'datetime', 'comments']:
                 setattr(Books,
                         'custom_column_' + str(cc_id[0]),
                         relationship(cc_classes[cc_id[0]],
                                      primaryjoin=(
                                          Books.id == cc_classes[cc_id[0]].book),
                                      backref='books'))
-            elif (cc_id[1] == 'series'):
+            elif cc_id[1] == 'series':
                 setattr(Books,
                         'custom_column_' + str(cc_id[0]),
                         relationship(books_custom_column_links[cc_id[0]],
diff --git a/cps/editbooks.py b/cps/editbooks.py
index e5ef0dee..5cebec80 100644
--- a/cps/editbooks.py
+++ b/cps/editbooks.py
@@ -504,12 +504,17 @@ def edit_book_publisher(publishers, book):
     return changed
 
 
-def edit_cc_data_number(book_id, book, c, to_save, cc_db_value, cc_string):
+def edit_cc_data_value(book_id, book, c, to_save, cc_db_value, cc_string):
     changed = False
     if to_save[cc_string] == 'None':
         to_save[cc_string] = None
     elif c.datatype == 'bool':
         to_save[cc_string] = 1 if to_save[cc_string] == 'True' else 0
+    elif c.datatype == 'datetime':
+        try:
+            to_save[cc_string] = datetime.strptime(to_save[cc_string], "%Y-%m-%d")
+        except ValueError:
+            to_save[cc_string] = db.Books.DEFAULT_PUBDATE
 
     if to_save[cc_string] != cc_db_value:
         if cc_db_value is not None:
@@ -568,8 +573,8 @@ def edit_cc_data(book_id, book, to_save):
             else:
                 cc_db_value = None
             if to_save[cc_string].strip():
-                if c.datatype == 'int' or c.datatype == 'bool' or c.datatype == 'float':
-                    changed, to_save = edit_cc_data_number(book_id, book, c, to_save, cc_db_value, cc_string)
+                if c.datatype in ['int', 'bool', 'float', "datetime", "comments"]:
+                    changed, to_save = edit_cc_data_value(book_id, book, c, to_save, cc_db_value, cc_string)
                 else:
                     changed, to_save = edit_cc_data_string(book, c, to_save, cc_db_value, cc_string)
             else:
diff --git a/cps/kobo.py b/cps/kobo.py
index 8988ef3f..085bf1bc 100644
--- a/cps/kobo.py
+++ b/cps/kobo.py
@@ -158,6 +158,7 @@ def HandleSyncRequest():
             .filter(db.Books.last_modified >= sync_token.books_last_modified)
             .filter(db.Books.id>sync_token.books_last_id)
             .filter(db.Data.format.in_(KOBO_FORMATS))
+            .filter(calibre_db.common_filters())
             .order_by(db.Books.last_modified)
             .order_by(db.Books.id)
             .limit(SYNC_ITEM_LIMIT)
@@ -168,6 +169,7 @@ def HandleSyncRequest():
             .join(db.Data).outerjoin(ub.ArchivedBook, db.Books.id == ub.ArchivedBook.book_id)
             .filter(db.Books.last_modified > sync_token.books_last_modified)
             .filter(db.Data.format.in_(KOBO_FORMATS))
+            .filter(calibre_db.common_filters())
             .order_by(db.Books.last_modified)
             .order_by(db.Books.id)
             .limit(SYNC_ITEM_LIMIT)
diff --git a/cps/static/js/edit_books.js b/cps/static/js/edit_books.js
index 8cedf688..389a247f 100644
--- a/cps/static/js/edit_books.js
+++ b/cps/static/js/edit_books.js
@@ -10,25 +10,36 @@ if ($("#description").length) {
         menubar: "edit view format",
         language: language
     });
-
-    if (!Modernizr.inputtypes.date) {
-        $("#pubdate").datepicker({
-            format: "yyyy-mm-dd",
-            language: language
-        }).on("change", function () {
-            // Show localized date over top of the standard YYYY-MM-DD date
-            var pubDate;
-            var results = /(\d{4})[-\/\\](\d{1,2})[-\/\\](\d{1,2})/.exec(this.value); // YYYY-MM-DD
-            if (results) {
-                pubDate = new Date(results[1], parseInt(results[2], 10) - 1, results[3]) || new Date(this.value);
-                $("#fake_pubdate")
-                    .val(pubDate.toLocaleDateString(language))
-                    .removeClass("hidden");
-            }
-        }).trigger("change");
-    }
 }
 
+if ($(".tiny_editor").length) {
+    tinymce.init({
+        selector: ".tiny_editor",
+        branding: false,
+        menubar: "edit view format",
+        language: language
+    });
+}
+
+tiny_editor
+if (!Modernizr.inputtypes.date) {
+    $("#pubdate").datepicker({
+        format: "yyyy-mm-dd",
+        language: language
+    }).on("change", function () {
+        // Show localized date over top of the standard YYYY-MM-DD date
+        var pubDate;
+        var results = /(\d{4})[-\/\\](\d{1,2})[-\/\\](\d{1,2})/.exec(this.value); // YYYY-MM-DD
+        if (results) {
+            pubDate = new Date(results[1], parseInt(results[2], 10) - 1, results[3]) || new Date(this.value);
+            $("#fake_pubdate")
+                .val(pubDate.toLocaleDateString(language))
+                .removeClass("hidden");
+        }
+    }).trigger("change");
+}
+
+
 if (!Modernizr.inputtypes.date) {
     $("#Publishstart").datepicker({
         format: "yyyy-mm-dd",
@@ -63,6 +74,7 @@ if (!Modernizr.inputtypes.date) {
     }).trigger("change");
 }
 
+
 /*
 Takes a prefix, query typeahead callback, Bloodhound typeahead adapter
  and returns the completions it gets from the bloodhound engine prefixed.
@@ -78,11 +90,6 @@ function prefixedSource(prefix, query, cb, bhAdapter) {
     });
 }
 
-/*function getPath() {
-    var jsFileLocation = $("script[src*=edit_books]").attr("src");  // the js file path
-    return jsFileLocation.substr(0, jsFileLocation.search("/static/js/edit_books.js"));   // the js folder path
-}*/
-
 var authors = new Bloodhound({
     name: "authors",
     datumTokenizer: function datumTokenizer(datum) {
diff --git a/cps/static/js/main.js b/cps/static/js/main.js
index 927b65ac..ca9f3e14 100644
--- a/cps/static/js/main.js
+++ b/cps/static/js/main.js
@@ -533,7 +533,7 @@ $(function() {
         $("#pub_new").toggleClass("disabled");
         $("#pub_old").toggleClass("disabled");
         var alternative_text = $("#toggle_order_shelf").data('alt-text');
-        $("#toggle_order_shelf")[0].attributes['data-alt-text'].value = $("#toggle_order_shelf").html();
+        $("#toggle_order_shelf").data('alt-text', $("#toggle_order_shelf").html());
         $("#toggle_order_shelf").html(alternative_text);
     });
 
diff --git a/cps/templates/book_edit.html b/cps/templates/book_edit.html
index cc21cf52..b74a2f34 100644
--- a/cps/templates/book_edit.html
+++ b/cps/templates/book_edit.html
@@ -149,7 +149,22 @@
               {% endif %}>
             {% endif %}
 
+            {% if c.datatype == 'datetime' %}
+              <div style="position: relative">
+                <input type="date" class="form-control" name="{{ 'custom_column_' ~ c.id }}" id="{{ 'custom_column_' ~ c.id }}"
+                  {% if book['custom_column_' ~ c.id]|length > 0 %}
+                    value="{% if book['custom_column_' ~ c.id][0].value  %}{{ book['custom_column_' ~ c.id][0].value|formatdateinput}}{% endif %}"
+                  {% endif %}>
+                <input type="text" class="fake_custom_column_{{ c.id }} form-control fake-input hidden "
+                  {% if book['custom_column_' ~ c.id]|length > 0 %}
+                    value="{% if book['custom_column_' ~ c.id][0].value %}{{book['custom_column_' ~ c.id][0].value|formatdate}}{% endif %}"
+                  {% endif %}>
+              </div>
+            {% endif %}
 
+            {% if c.datatype == 'comments' %}
+              <textarea class="form-control tiny_editor" name="{{ 'custom_column_' ~ c.id }}" id="{{ 'custom_column_' ~ c.id }}" rows="7">{% if book['custom_column_' ~ c.id]|length > 0 %}{{book['custom_column_' ~ c.id][0].value}}{%endif%}</textarea>
+            {% endif %}
             {% if c.datatype == 'enumeration' %}
               <select class="form-control" name="{{ 'custom_column_' ~ c.id }}" id="{{ 'custom_column_' ~ c.id }}">
                   <option></option>
diff --git a/cps/templates/detail.html b/cps/templates/detail.html
index b1e3fe33..dd1934a5 100644
--- a/cps/templates/detail.html
+++ b/cps/templates/detail.html
@@ -100,7 +100,7 @@
       <h2 id="title">{{entry.title}}</h2>
       <p class="author">
           {% for author in entry.authors %}
-            <a href="{{url_for('web.books_list',  data='author', sort_param='new', book_id=author.id ) }}">{{author.name.replace('|',',')}}</a>
+            <a href="{{url_for('web.books_list',  data='author', sort_param='stored', book_id=author.id ) }}">{{author.name.replace('|',',')}}</a>
             {% if not loop.last %}
               &amp;
             {% endif %}
@@ -122,7 +122,7 @@
       {% endif %}
 
       {% if entry.series|length > 0 %}
-        <p>{{_('Book')}} {{entry.series_index}} {{_('of')}} <a href="{{url_for('web.books_list', data='series', sort_param='abc', book_id=entry.series[0].id)}}">{{entry.series[0].name}}</a></p>
+        <p>{{_('Book')}} {{entry.series_index}} {{_('of')}} <a href="{{url_for('web.books_list', data='series', sort_param='stored', book_id=entry.series[0].id)}}">{{entry.series[0].name}}</a></p>
       {% endif %}
 
       {% if entry.languages.__len__() > 0 %}
@@ -151,7 +151,7 @@
         <span class="glyphicon glyphicon-tags"></span>
 
         {% for tag in entry.tags %}
-          <a href="{{ url_for('web.books_list', data='category', sort_param='new', book_id=tag.id) }}" class="btn btn-xs btn-info" role="button">{{tag.name}}</a>
+          <a href="{{ url_for('web.books_list', data='category', sort_param='stored', book_id=tag.id) }}" class="btn btn-xs btn-info" role="button">{{tag.name}}</a>
         {%endfor%}
       </p>
 
@@ -162,7 +162,7 @@
       <div class="publishers">
         <p>
           <span>{{_('Publisher')}}:
-              <a href="{{url_for('web.books_list', data='publisher', sort_param='new', book_id=entry.publishers[0].id ) }}">{{entry.publishers[0].name}}</a>
+              <a href="{{url_for('web.books_list', data='publisher', sort_param='stored', book_id=entry.publishers[0].id ) }}">{{entry.publishers[0].name}}</a>
           </span>
         </p>
       </div>
@@ -193,14 +193,16 @@
                 {% else %}
                 {% if c.datatype == 'float' %}
                   {{ column.value|formatfloat(2) }}
-                {% else %}
-                {% if c.datatype == 'series' %}
+                {% elif c.datatype == 'datetime' %}
+                  {{ column.value|formatdate }}
+                {% elif c.datatype == 'comments' %}
+                  {{column.value|safe}}
+                {% elif c.datatype == 'series' %}
                   {{ '%s [%s]' % (column.value, column.extra|formatfloat(2)) }}
                 {% else %}
                   {{ column.value }}
                 {% endif %}
                 {% endif %}
-                {% endif %}
               {% endif %}
             {% endfor %}
           {% endif %}
diff --git a/cps/templates/grid.html b/cps/templates/grid.html
index 6b03d89c..1e79c43d 100644
--- a/cps/templates/grid.html
+++ b/cps/templates/grid.html
@@ -27,7 +27,7 @@
           {% for entry in entries %}
               <div class="col-sm-3 col-lg-2 col-xs-6 book sortable" {% if entry[0].sort %}data-name="{{entry[0].series[0].name}}"{% endif %} data-id="{% if entry[0].series[0].name %}{{entry[0].series[0].name}}{% endif %}">
                   <div class="cover">
-                      <a href="{{url_for('web.books_list', data=data, sort_param='new', book_id=entry[0].series[0].id )}}">
+                      <a href="{{url_for('web.books_list', data=data, sort_param='stored', book_id=entry[0].series[0].id )}}">
                           <span class="img">
                               <img src="{{ url_for('web.get_cover', book_id=entry[0].id) }}" alt="{{ entry[0].name }}"/>
                               <span class="badge">{{entry.count}}</span>
@@ -35,7 +35,7 @@
                       </a>
                   </div>
                   <div class="meta">
-                      <a href="{{url_for('web.books_list', data=data, sort_param='new', book_id=entry[0].series[0].id )}}">
+                      <a href="{{url_for('web.books_list', data=data, sort_param='stored', book_id=entry[0].series[0].id )}}">
                           <p class="title">{{entry[0].series[0].name|shortentitle}}</p>
                       </a>
                   </div>
diff --git a/cps/templates/list.html b/cps/templates/list.html
index 1e171ca5..c68bda10 100644
--- a/cps/templates/list.html
+++ b/cps/templates/list.html
@@ -32,7 +32,7 @@
       {% endif %}
       <div class="row" {% if entry[0].sort %}data-name="{{entry[0].name}}"{% endif %} data-id="{% if entry[0].sort %}{{entry[0].sort}}{% else %}{% if entry.name %}{{entry.name}}{% else %}{{entry[0].name}}{% endif %}{% endif %}">
         <div class="col-xs-2 col-sm-2 col-md-1" align="left"><span class="badge">{{entry.count}}</span></div>
-        <div class="col-xs-10 col-sm-10 col-md-11"><a id="list_{{loop.index0}}" href="{% if entry.format %}{{url_for('web.books_list', data=data, sort_param='new', book_id=entry.format )}}{% else %}{{url_for('web.books_list', data=data, sort_param='new', book_id=entry[0].id )}}{% endif %}">
+        <div class="col-xs-10 col-sm-10 col-md-11"><a id="list_{{loop.index0}}" href="{% if entry.format %}{{url_for('web.books_list', data=data, sort_param='stored', book_id=entry.format )}}{% else %}{{url_for('web.books_list', data=data, sort_param='stored', book_id=entry[0].id )}}{% endif %}">
           {% if entry.name %}
           <div class="rating">
           {% for number in range(entry.name) %}
diff --git a/cps/templates/search.html b/cps/templates/search.html
index d11f3ec8..78396d80 100644
--- a/cps/templates/search.html
+++ b/cps/templates/search.html
@@ -2,7 +2,7 @@
 {% block body %}
 <div class="discover">
     {% if entries|length < 1 %}
-      <h2>{{_('No Results Found')}} {{adv_searchterm}}</h2>
+      <h2>{{_('No Results Found')}}</h2>
       <p>{{_('Search Term:')}} {{adv_searchterm}}</p>
     {% else %}
       <h2>{{result_count}} {{_('Results for:')}} {{adv_searchterm}}</h2>
diff --git a/cps/templates/search_form.html b/cps/templates/search_form.html
index 1d98b22b..efbf0159 100644
--- a/cps/templates/search_form.html
+++ b/cps/templates/search_form.html
@@ -167,7 +167,26 @@
       <input type="number" step="0.01" class="form-control" name="{{ 'custom_column_' ~ c.id }}" id="{{ 'custom_column_' ~ c.id }}" value="">
       {% endif %}
 
-      {% if c.datatype in ['text', 'series'] and not c.is_multiple %}
+      {% if c.datatype == 'datetime' %}
+      <div class="row">
+        <div class="form-group col-sm-6">
+            <label for="{{ 'custom_column_' ~ c.id }}">{{_('From:')}}</label>
+          <div style="position: relative">
+            <input type="date" class="form-control" name="{{ 'custom_column_' ~ c.id }}_start" id="{{ 'custom_column_' ~ c.id }}_start" value="">
+            <input type="text" class="form-control fake-input hidden" id="fake_{{ 'custom_column_' ~ c.id }}_start" value="">
+          </div>
+        </div>
+        <div class="form-group col-sm-6">
+            <label for="{{ 'custom_column_' ~ c.id }}">{{_('To:')}}</label>
+          <div style="position: relative">
+            <input type="date" class="form-control" name="{{ 'custom_column_' ~ c.id }}_end" id="{{ 'custom_column_' ~ c.id }}_end" value="">
+            <input type="text" class="form-control fake-input hidden" id="fake_{{ 'custom_column_' ~ c.id }}_end" value="">
+          </div>
+        </div>
+      </div>
+      {% endif %}
+
+      {% if c.datatype in ['text', 'series', 'comments'] and not c.is_multiple %}
       <input type="text" class="form-control" name="{{ 'custom_column_' ~ c.id }}" id="{{ 'custom_column_' ~ c.id }}" value="">
       {% endif %}
 
diff --git a/cps/translations/cs/LC_MESSAGES/messages.mo b/cps/translations/cs/LC_MESSAGES/messages.mo
index 24edf010..aaca5bc6 100644
Binary files a/cps/translations/cs/LC_MESSAGES/messages.mo and b/cps/translations/cs/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/cs/LC_MESSAGES/messages.po b/cps/translations/cs/LC_MESSAGES/messages.po
index 82adc54c..96987786 100644
--- a/cps/translations/cs/LC_MESSAGES/messages.po
+++ b/cps/translations/cs/LC_MESSAGES/messages.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-06-09 21:11+0100\n"
 "Last-Translator: Lukas Heroudek <lukas.heroudek@gmail.com>\n"
 "Language: cs_CZ\n"
@@ -15,7 +15,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -45,9 +45,9 @@ msgstr "Úspěšně obnovené připojení"
 msgid "Unknown command"
 msgstr "Neznámý příkaz"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Neznámý"
@@ -70,7 +70,7 @@ msgstr "Uživatel admin"
 msgid "all"
 msgstr "Vše"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Uživatel nenalezen"
 
@@ -87,7 +87,7 @@ msgstr "Zobrazit vše"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -95,7 +95,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Nezbývá žádný správce, nelze odebrat roli správce"
 
@@ -131,303 +131,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Konfigurace Calibre-Web aktualizována"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Opravdu chcete odstranit Kobo token?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Jste si jisti, že chcete odstranit tuto polici?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Jste si jisti, že chcete odstranit tuto polici?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Jste si jisti, že chcete odstranit tuto polici?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Zakázat"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Povolit"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json není nakonfigurováno pro webové aplikace"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Umístění zápisového souboru není platné. Určete prosím platnou polohu"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Umístění zápisového souboru pro přístup není platné. Určete prosím platnou polohu"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Prosím zadejte LDAP poskytovatele, port, DN a Identifikátor objektu uživatele"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "Filtr objektů skupiny LDAP musí mít jeden “%s” formátový identifikátor"
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "Filtr objektů skupiny LDAP má nesrovnatelnou závorku"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "Filtr uživatelských objektů LDAP musí mít jeden “%s” formátový identifikátor"
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "Filtr uživatelských objektů LDAP má nesrovnatelnou závorku"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "Umístění souboru klíčů není platné, zadejte prosím správnou cestu"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "Umístění certifikátu není platné, zadejte prosím správnou cestu"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "Umístění databáze není platné, opravte prosím cestu"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "Databáze není zapisovatelná"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Základní konfigurace"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Vyplňte všechna pole!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "E-mail není z platné domény"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Přidat nového uživatele"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Uživatel '%(user)s' vytvořen"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Byl nalezen existující účet pro tuto e-mailovou adresu nebo přezdívku."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Uživatel '%(nick)s' smazán"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Nezbývá žádný správce, nemůžete jej odstranit"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Upravit uživatele %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Uživatel '%(nick)s' aktualizován"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Došlo k neznámé chybě."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Změnit SMTP nastavení"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Při odesílání zkušebního e-mailu došlo k chybě: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Prvně nastavte svou e-mailovou adresu..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Nastavení e-mailového serveru aktualizováno"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Heslo pro uživatele %(user)s resetováno"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Neznámá chyba. Opakujte prosím později."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Nejprve nakonfigurujte nastavení pošty SMTP..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Prohlížeč log souborů"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Požadování balíčku aktualizace"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Stahování balíčku aktualizace"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Rozbalování balíčku aktualizace"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Nahrazování souborů"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Databázová připojení jsou uzavřena"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Zastavuji server"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Aktualizace dokončena, klepněte na tlačítko OK a znovu načtěte stránku"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Aktualizace selhala:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP chyba"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Chyba připojení"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Vypršel časový limit při navazování spojení"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Všeobecná chyba"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Aktualizační soubor nemohl být uložen do Temp Dir"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Nepodařilo se vytvořit nejméně jednoho uživatele LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Chyba: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Chyba: Žádná reakce od uživatele LDAP serveru"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Nejméně jeden uživatel LDAP nenalezen v databázi"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -439,6 +447,11 @@ msgstr "není nakonfigurováno"
 msgid "Execution permissions missing"
 msgstr "Chybí povolení k exekuci"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "Vlastní sloupec %(column)d neexistuje v databázi"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Formát knihy úspěšně smazán"
@@ -447,8 +460,8 @@ msgstr "Formát knihy úspěšně smazán"
 msgid "Book Successfully Deleted"
 msgstr "Kniha úspěšně smazána"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Chyba otevírání eknihy. Soubor neexistuje nebo není přístupný"
 
@@ -461,76 +474,76 @@ msgstr "upravit metadata"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s není platným jazykem"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Soubor s příponou '%(ext)s' nelze odeslat na tento server"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Soubor, který má být odeslán musí mít příponu"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Nepodařilo se vytvořit cestu %(path)s (oprávnění odepřeno)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Uložení souboru %(file)s se nezdařilo."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Chyba databáze: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Formát souboru %(ext)s přidán do %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadata úspěšně aktualizována"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Chyba při úpravách knihy, zkontrolujte prosím log pro podrobnosti"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Nahraná kniha pravděpodobně existuje v knihovně, zvažte prosím změnu před nahráním nové: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Soubor %(filename)s nemohl být uložen do dočasného adresáře"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Nepodařilo se přesunout soubor obalu %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Soubor %(file)s nahrán"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Chybí zdrojový nebo cílový formát pro převod"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Kniha byla úspěšně zařazena do fronty pro převod do %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Při převodu této knihy došlo k chybě: %(res)s"
@@ -716,7 +729,7 @@ msgstr "Kobo nastavení"
 msgid "Register with %(provider)s"
 msgstr "Registrovat s %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "nyní jste přihlášen jako: '%(nickname)s'"
@@ -786,7 +799,7 @@ msgstr "Vše"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "přihlásit se"
 
@@ -802,7 +815,7 @@ msgstr "Token vypršel"
 msgid "Success! Please return to your device"
 msgstr "Úspěch! Vraťte se prosím do zařízení"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Knihy"
 
@@ -827,7 +840,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Nejlépe hodnocené knihy"
 
@@ -836,7 +849,7 @@ msgid "Show Top Rated Books"
 msgstr "Zobrazit nejlépe hodnocené knihy"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Přečtené knihy"
 
@@ -845,7 +858,7 @@ msgid "Show read and unread"
 msgstr "Zobrazit prečtené a nepřečtené"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Nepřečtené knihy"
 
@@ -863,7 +876,7 @@ msgid "Show random books"
 msgstr "Zobrazit náhodné knihy"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Kategorie"
 
@@ -873,7 +886,7 @@ msgstr "Zobrazit výběr kategorie"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Série"
 
@@ -891,7 +904,7 @@ msgid "Show author selection"
 msgstr "Zobrazit výběr autora"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Vydavatelé"
 
@@ -901,7 +914,7 @@ msgstr "Zobrazit výběr vydavatele"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Jazyky"
 
@@ -925,7 +938,7 @@ msgstr "Formáty souborů"
 msgid "Show file formats selection"
 msgstr "Zobrazit výběr formátů"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Archivované knihy"
 
@@ -933,7 +946,7 @@ msgstr "Archivované knihy"
 msgid "Show archived books"
 msgstr "Zobrazit archivované knihy"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1065,190 +1078,185 @@ msgstr "Nová aktualizace k dispozici. Klepnutím na tlačítko níže aktualizu
 msgid "No release information available"
 msgstr "Nejsou k dispozici žádné informace o verzi"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Objevte (Náhodné knihy)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Žhavé knihy (Nejstahovanější)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Jejda! Vybraná kniha není k dispozici. Soubor neexistuje nebo není přístupný"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Autoři: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Vydavatel: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Série: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Hodnocení: %(rating)s stars"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Soubor formátů: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Kategorie: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Jazyky: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "Vlastní sloupec %(column)d neexistuje v databázi"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Rozšířené hledání"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Hledat"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Stáhnutí"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Seznam hodnocení"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Seznam formátů"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Úlohy"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Vydáno po "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Vydáno před "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Hodnocení <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Hodnocení >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Kniha byla úspěšně zařazena do fronty pro odeslání na %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Při odesílání této knihy došlo k chybě: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Nejprve nakonfigurujte vaši kindle e-mailovou adresu.."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "E-mailový server není nakonfigurován, kontaktujte svého správce!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "registrovat"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Váš e-mail nemá povolení k registraci"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Potvrzovací e-mail byl odeslán na váš účet."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Nelze aktivovat ověření LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Záložní přihlášení jako: ‘%(nickname)s’, server LDAP není dosažitelný nebo neznámý uživatel"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Nelze se přihlásit: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Špatné uživatelské jméno nebo heslo"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Nové heslo bylo zasláno na vaši emailovou adresu"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Zadejte platné uživatelské jméno pro obnovení hesla"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Nyní jste přihlášeni jako: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s profil"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profil aktualizován"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Byl nalezen existující účet pro tuto e-mailovou adresu."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Číst knihu"
 
@@ -1505,7 +1513,7 @@ msgid "OK"
 msgstr "OK"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1603,13 +1611,13 @@ msgstr "Převést knihu"
 msgid "Book Title"
 msgstr "Název knihy"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Autor"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Popis"
 
@@ -1617,15 +1625,15 @@ msgstr "Popis"
 msgid "Identifiers"
 msgstr "Identifikátory"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Typy identifikátorů"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Hodnota identifikátorů"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Odstranit"
@@ -1658,8 +1666,8 @@ msgstr "Nahrát obal z místní jednotky"
 msgid "Published Date"
 msgstr "Datum vydání"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Vydavatel"
@@ -1679,56 +1687,56 @@ msgstr "Ano"
 msgid "No"
 msgstr "Ne"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Nahrát formát"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Zobrazit knihu po uložení"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Získat metadata"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Uložit"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Klíčové slovo"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr "Hledat klíčové slovo"
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Kliknutím na obal načtěte metadata do formuláře"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Načítání..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Zavřít"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Zdroj"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Chyba vyhledávání!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Nebyly nalezeny žádné výsledky! Zadejte jiné klíčové slovo."
 
@@ -2253,45 +2261,45 @@ msgstr "z"
 msgid "Published"
 msgstr "Publikováno"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Označit jako nepřečtené"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Označit jako přečtené"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Přečteno"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Obnovit z archivu"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Archívovat"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Archivováno"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Popis:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Přidat do police"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Veřejné)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Upravit metadata"
 
@@ -2835,6 +2843,14 @@ msgstr "Hodnoceni více než"
 msgid "Rating Below"
 msgstr "Hodnocení méně než"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Smazat tuto polici"
diff --git a/cps/translations/de/LC_MESSAGES/messages.mo b/cps/translations/de/LC_MESSAGES/messages.mo
index c14cf26c..c5a88c70 100644
Binary files a/cps/translations/de/LC_MESSAGES/messages.mo and b/cps/translations/de/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/de/LC_MESSAGES/messages.po b/cps/translations/de/LC_MESSAGES/messages.po
index 63763ef6..9bb55d74 100644
--- a/cps/translations/de/LC_MESSAGES/messages.po
+++ b/cps/translations/de/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2021-02-02 19:04+0100\n"
 "Last-Translator: Ozzie Isaacs\n"
 "Language: de\n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -46,9 +46,9 @@ msgstr "Erfolgreich neu verbunden"
 msgid "Unknown command"
 msgstr "Unbekannter Befehl"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Unbekannt"
@@ -71,7 +71,7 @@ msgstr "Administrator"
 msgid "all"
 msgstr "Alle"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Benutzer nicht gefunden"
 
@@ -89,7 +89,7 @@ msgstr "Zeige alle"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -97,7 +97,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Kein Admin Benutzer verblieben Admin Berechtigung kann nicht entfernt werden"
 
@@ -133,303 +133,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Konfiguration von Calibre-Web wurde aktualisiert"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Möchten Sie wirklich den Kobo Token löschen?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr "Möchten Sie wirklich diese Domain löschen?"
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr "Möchten Sie wirklich diesen Benutzer löschen?"
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Möchten Sie wirklich dieses Bücherregal löschen?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Möchten Sie wirklich dieses Bücherregal löschen?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Möchten Sie wirklich dieses Bücherregal löschen?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Verbieten"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Erlauben"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json ist nicht für Web Anwendungen konfiguriert"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Logdatei Pfad ist ungültig, bitte einen gültigen Pfad angeben"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Zugriffs Logdatei Pfad ist ungültig, bitte einen gültigen Pfad angeben"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Bitte einen LDAP Server, Port, DN und Benutzer Objekt angeben"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP Gruppen Objekt Filter benötigt genau eine \"%s\" Format Kennung"
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "LDAP Gruppen Objekt Filter hat ungleiche Anzahl von Klammern"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP Benutzer Objekt Filter benötigt genau eine \"%s\" Format Kennung"
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "LDAP Benutzer Objekt Filter hat ungleiche Anzahl von Klammern"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr "Der LDAP Member User Filter benötigt genau eine \"%s\" Formatierungsmarkierung"
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr "LDAP Member User Filter hat eine ungleiche Anzahl von geöffneten und geschlossenen Klammern"
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr "LDAP CA-Zertifikat, Zertifikat oder Key Datei ist kein gültiger Pfad"
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "Schlüsseldatei ist ungültig, bitte einen gültigen Pfad angeben"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "Zertifikatsdatei ist ungültig, bitte einen gültigen Pfad angeben"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "Einstellungsdatenbank ist nicht schreibbar"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "DB Pfad ist nicht gültig, bitte einen gültigen Pfad angeben"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "Datenbank ist nicht schreibbar"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Basiskonfiguration"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Bitte alle Felder ausfüllen!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "E-Mail bezieht sich nicht auf eine gültige Domain"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Neuen Benutzer hinzufügen"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Benutzer '%(user)s' angelegt"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Es existiert bereits ein Account für diese E-Mailadresse oder diesen Benutzernamen."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Benutzer '%(nick)s' gelöscht"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Benutzer kann nicht gelöscht werden, es wäre kein Admin Benutzer übrig"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Benutzer %(nick)s bearbeiten"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Benutzer '%(nick)s' aktualisiert"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Es ist ein unbekannter Fehler aufgetreten."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "SMTP-Einstellungen ändern"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Es trat ein Fehler beim Versenden der Test-E-Mail auf: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Bitte zuerst E-Mail Adresse konfigurieren..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Einstellungen des E-Mail-Servers aktualisiert"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Passwort für Benutzer %(user)s wurde zurückgesetzt"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Es ist ein unbekannter Fehler aufgetreten. Bitte später erneut versuchen."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Bitte zuerst die SMTP-Einstellung konfigurieren ..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Logdatei Anzeige"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Frage Update an"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Lade Update herunter"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Entpacke Update"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Ersetze Dateien"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Schließe Datenbankverbindungen"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Stoppe Server"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Update abgeschlossen, bitte okay drücken und Seite neu laden"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Update fehlgeschlagen:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP Fehler"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Verbindungsfehler"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Timeout beim Verbindungsaufbau"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Allgemeiner Fehler"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Updatedatei konnte nicht in Temporärem Ordner gespeichert werden"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Mindestens ein LDAP Benutzer konnte nicht erzeugt werden"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Fehler: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Fehler: Keine Benutzerinformationen von LDAP Server empfangen"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Mindestens ein LDAP Benutzer wurde nicht in der Datenbank gefudnen"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr "{} Benutzer erfolgreich importiert"
 
@@ -441,6 +449,11 @@ msgstr "Nicht konfiguriert"
 msgid "Execution permissions missing"
 msgstr "Ausführeberechtigung fehlt"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "Benutzerdefinierte Spalte Nr. %(column)d ist nicht in Calibre Datenbank vorhanden"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Buch Format erfolgreich gelöscht"
@@ -449,8 +462,8 @@ msgstr "Buch Format erfolgreich gelöscht"
 msgid "Book Successfully Deleted"
 msgstr "Buch erfolgreich gelöscht"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Öffnen des Buchs fehlgeschlagen. Datei existiert nicht oder ist nicht zugänglich"
 
@@ -463,76 +476,76 @@ msgstr "Metadaten editieren"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s ist keine gültige Sprache"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Dateiendung '%(ext)s' kann nicht auf diesen Server hochgeladen werden"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Dateien müssen eine Erweiterung haben, um hochgeladen zu werden"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Fehler beim Erzeugen des Pfads %(path)s (Zugriff verweigert)"
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Fehler beim Speichern der Datei %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Datenbankfehler: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Dateiformat %(ext)s zu %(book)s hinzugefügt"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr "IDs unterscheiden nicht Groß-Kleinschreibung, alte ID wird überschrieben"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadaten wurden erfolgreich aktualisiert"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Fehler beim Editieren des Buchs, Details im Logfile"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Das hochgeladene Buch existiert evtl. schon in der Bibliothek: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Die Datei %(filename)s konnte nicht im temporären Ordner gespeichert werden"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Fehler beim Verschieben der Cover Datei %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Datei %(file)s hochgeladen"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Quell- oder Zielformat für Konvertierung fehlt"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Buch wurde erfolgreich für die Konvertierung nach %(book_format)s eingereiht"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Es trat ein Fehler beim Konvertieren des Buches auf: %(res)s"
@@ -718,7 +731,7 @@ msgstr "Kobo Setup"
 msgid "Register with %(provider)s"
 msgstr "Anmelden mit %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "Du bist nun eingeloggt als '%(nickname)s'"
@@ -788,7 +801,7 @@ msgstr "Alle"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "Login"
 
@@ -804,7 +817,7 @@ msgstr "Token ist abgelaufen"
 msgid "Success! Please return to your device"
 msgstr "Erfolg! Bitte zum Gerät zurückkehren"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Bücher"
 
@@ -829,7 +842,7 @@ msgstr "Heruntergeladene Bücher"
 msgid "Show Downloaded Books"
 msgstr "Zeige heruntergeladene Bücher"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Best bewertete Bücher"
 
@@ -838,7 +851,7 @@ msgid "Show Top Rated Books"
 msgstr "Bestbewertete Bücher anzeigen"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Gelesene Bücher"
 
@@ -847,7 +860,7 @@ msgid "Show read and unread"
 msgstr "Zeige gelesene/ungelesene Bücher"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Ungelesene Bücher"
 
@@ -865,7 +878,7 @@ msgid "Show random books"
 msgstr "Zeige zufällige Bücher"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Kategorien"
 
@@ -875,7 +888,7 @@ msgstr "Zeige Kategorienauswahl"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Serien"
 
@@ -893,7 +906,7 @@ msgid "Show author selection"
 msgstr "Zeige Autorenauswahl"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Verleger"
 
@@ -903,7 +916,7 @@ msgstr "Zeige Verlegerauswahl"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Sprachen"
 
@@ -927,7 +940,7 @@ msgstr "Dateiformate"
 msgid "Show file formats selection"
 msgstr "Zeige Dateiformatauswahl"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Archivierte Bücher"
 
@@ -935,7 +948,7 @@ msgstr "Archivierte Bücher"
 msgid "Show archived books"
 msgstr "Zeige archivierte Bücher"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr "Bücherliste"
 
@@ -1067,190 +1080,185 @@ msgstr "Ein neues Update ist verfügbar. Klicke auf den Button unten, um auf Ver
 msgid "No release information available"
 msgstr "Keine Releaseinformationen verfügbar"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Zufällige Bücher"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Beliebte Bücher (am meisten Downloads)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr "Von %(user)s heruntergeladene Bücher"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Öffnen des Buchs fehlgeschlagen. Datei existiert nicht oder ist nicht zugänglich"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Author: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Verleger: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Serie: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Bewertung: %(rating)s Sterne"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Dateiformat: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Kategorie: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Sprache: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "Benutzerdefinierte Spalte Nr. %(column)d ist nicht in Calibre Datenbank vorhanden"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Erweiterte Suche"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Suche"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Downloads"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Bewertungsliste"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Liste der Dateiformate"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Aufgaben"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Herausgegeben nach dem "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Herausgegeben vor dem "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Bewertung <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Bewertung >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr "Lesestatus = %(status)s"
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Buch erfolgreich zum Senden an %(kindlemail)s eingereiht"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Beim Senden des Buchs trat ein Fehler auf: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Bitte zuerst die Kindle E-Mailadresse konfigurieren..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "Der E-Mail Server ist nicht konfigurierte, bitte den Administrator kontaktieren!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "Registieren"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Diese E-Mail ist nicht für die Registrierung zugelassen"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Eine Bestätigungs-E-Mail wurde an deinen E-Mail Account versendet."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "LDAP-Authentifizierung kann nicht aktiviert werden"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Rückfall Login als: '%(nickname)s', LDAP Server ist nicht erreichbar, oder der Nutzer ist unbekannt"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Login nicht erfolgreich: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Falscher Benutzername oder Passwort"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Das neue Passwort wurde an die E-Mail Adresse verschickt"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Bitte einen gültigen Benutzernamen zum Zurücksetzen des Passworts angeben"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Eingeloggt als: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s's Profil"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profil aktualisiert"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Es existiert bereits ein Benutzer für diese E-Mailadresse."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Lese ein Buch"
 
@@ -1507,7 +1515,7 @@ msgid "OK"
 msgstr "OK"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1605,13 +1613,13 @@ msgstr "Konvertiere Buch"
 msgid "Book Title"
 msgstr "Buchtitel"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Autor"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Beschreibung"
 
@@ -1619,15 +1627,15 @@ msgstr "Beschreibung"
 msgid "Identifiers"
 msgstr "IDs"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "ID Typ"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "ID Wert"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Entfernen"
@@ -1660,8 +1668,8 @@ msgstr "Coverdatei von Lokalem Laufwerk hochladen"
 msgid "Published Date"
 msgstr "Herausgabedatum"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Herausgeber"
@@ -1681,56 +1689,56 @@ msgstr "Ja"
 msgid "No"
 msgstr "Nein"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Format hochladen"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Buch nach Bearbeitung ansehen"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Metadaten laden"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Speichern"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Suchbegriff"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Suchbegriff "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Klicke auf das Bild, um die Metadaten zu übertragen"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Lade..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Schließen"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Quelle"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Fehler bei der Suche!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Keine Ergebnisse gefunden! Bitte ein anderes Schlüsselwort benutzen."
 
@@ -2255,45 +2263,45 @@ msgstr "von"
 msgid "Published"
 msgstr "Herausgabedatum"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Als ungelesen markieren"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Als gelesen markieren"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Gelesen"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Vom Archiv wiederherstellen"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Zum Archiv hinzufügen"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Archiviert"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Beschreibung:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Zu Bücherregal hinzufügen"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Öffentlich)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Metadaten bearbeiten"
 
@@ -2837,6 +2845,14 @@ msgstr "Bewertungen größer als"
 msgid "Rating Below"
 msgstr "Bewertungen kleiner als"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Lösche dieses Bücherregal"
diff --git a/cps/translations/el/LC_MESSAGES/messages.mo b/cps/translations/el/LC_MESSAGES/messages.mo
index 6db7d37c..f16b54c4 100644
Binary files a/cps/translations/el/LC_MESSAGES/messages.mo and b/cps/translations/el/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/el/LC_MESSAGES/messages.po b/cps/translations/el/LC_MESSAGES/messages.po
index bf9ab997..93d765b3 100644
--- a/cps/translations/el/LC_MESSAGES/messages.po
+++ b/cps/translations/el/LC_MESSAGES/messages.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Depountis Georgios\n"
 "Language: el\n"
@@ -15,7 +15,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -45,9 +45,9 @@ msgstr "Επιτυχής επανασύνδεση"
 msgid "Unknown command"
 msgstr "Άγνωστη εντολή"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "ʼΑγνωστο"
@@ -70,7 +70,7 @@ msgstr "Χρήστης Διαχειριστής"
 msgid "all"
 msgstr "Όλα"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Δεν βρέθηκε χρήστης"
 
@@ -87,7 +87,7 @@ msgstr "Προβολή Όλων"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -95,7 +95,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Δεν έχει απομείνει χρήστης διαχειριστής, δεν μπορεί να αφαιρεθεί ο ρόλος διαχειριστή"
 
@@ -131,303 +131,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Ενημερώθηκε η διαμόρφωση Calibre-Web"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Θέλεις πραγματικά να διαγράψεις τη Μονάδα Kobo;"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Είσαι σίγουρος/η πως θέλεις να διαγράψεις αυτό το ράφι;"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Είσαι σίγουρος/η πως θέλεις να διαγράψεις αυτό το ράφι;"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Είσαι σίγουρος/η πως θέλεις να διαγράψεις αυτό το ράφι;"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Απόρριψη"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Επιτρέπεται"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json Δεν Έχει Διαμορφωθεί Για Διαδικτυακή Εφαρμογή"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Το Φύλλο Καταγραφής Τοποθεσίας δεν είναι Έγκυρο, Παρακαλούμε Συμπλήρωσε Τη Σωστή Πορεία"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Η Πρόσβαση Φύλλου Καταγραφης Τοποθεσίας δεν είναι έγκυρη, Παρακαλούμε Συμπλήρωσε Τη Σωστή Πορεία"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Παρακαλούμε Συμπλήρωσε ένα Πάροχο LDAP, Θύρα, DN και Αντικείμενο Αναγνώρισης Χρήστη"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "Το Αντικείμενο Φίλτρου Ομάδας LDAP Πρέπει να Έχει Μια \"%s\" Αναγνώριση Μορφής"
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "Το Αντικείμενο Φίλτρου Ομάδας LDAP Έχει Παρενθέσεις Που Δεν Ταιριάζουν"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "Το Αντικείμενο Φίλτρου Χρήστη LDAP πρέπει να Έχει Μια \"%s\" Αναγνώριση Μορφής"
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "Το Αντικείμενο Φίλτρου Χρήστη LDAP Έχει Παρενθέσεις Που Δεν Ταιριάζουν"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "Το Αρχειο Κλειδί Τοποθεσίας δεν είναι Έγκυρο, Παρακαλούμε Συμπληρώστε Τη Σωστή Πορεία"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "Η Τοποθεσία Certfile δεν είναι Έγκυρη, Παρακαλούμε Συμπληρώστε Τη Σωστή Πορεία"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "Οι ρυθμίσεις DB δεν μπορούν να Γραφτούν"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "Η Τοποθεσία DB δεν είναι Έγκυρη, Παρακαλούμε Συμπληρώστε Τη Σωστή Πορεία"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "Η DB δεν μπορεί να Γραφτεί"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Βασική Διαμόρφωση"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Παρακαλούμε συμπλήρωσε όλα τα πεδία!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "Το E-mail δεν είναι από έγκυρο domain"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Προσθήκη νέου χρήστη"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Χρήστης/ες '%(user)s' δημιουργήθηκαν"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Βρέθηκε ένας ήδη υπάρχον λογαριασμός για αυτή τη διεύθυνση e-mail ή όνομα χρήστη."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Χρήστης/ες '%(nick)s' διαγράφηκαν"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Δεν έχει απομείνει χρήστης διαχειριστής, δεν μπορεί να διαγραφεί ο χρήστης"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Επεξεργασία χρήστη %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Χρήστης/ες '%(nick)s' ενημερώθηκαν"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Προέκυψε ένα άγνωστο σφάλμα."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Επεξεργασία Ρυθμίσεων E-mail Διακομιστή"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Παρουσιάστηκε σφάλμα κατά την αποστολή του δοκιμαστικού e-mail:% (res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Παρακαλούμε ρύθμισε πρώτα τη διεύθυνση e-mail σου..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Ενημερώθηκαν οι ρυθμίσεις E-mail διακομιστή"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Κωδικός για επαναφορά %(user) χρήστη/ών"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Προέκυψε ένα άγνωστο σφάλμα. Παρακαλούμε δοκίμασε ξανά αργότερα."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Παρακαλούμε διαμόρφωσε πρώτα τις ρυθμίσεις ταχυδρομείου SMTP..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Προβολέας αρχείου φύλλου καταγραφής"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Αίτημα πακέτου ενημέρωσης"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Κατεβάζει πακέτο ενημέρωσης"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Ανοίγει πακέτο ενημέρωσης"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Αντικατάσταση αρχείων"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Οι συνδέσεις βάσης δεδομένων είναι κλειστές"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Σταματάει το διακομιστή"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Η ενημέρωση τελειώσε, παρακαλούμε πιέστε το εντάξει και φορτώστε ξανά τη σελίδα"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Η ενημέρωση απέτυχε:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP Σφάλμα"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Σφάλμα σύνδεσης"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Τελείωσε ο χρόνος κατά την προσπάθεια δημιουργίας σύνδεσης"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Γενικό σφάλμα"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Το Αρχείο Ενημέρωσης Δεν Μπόρεσε Να Αποθηκευτεί σε"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Αποτυχία Δημιουργίας Τουλάχιστον Ενός Χρήστη LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Σφάλμα: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Σφάλμα: Δεν επιστράφηκε χρήστης σε απάντηση του διακομιστή LDAP"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Τουλάχιστον Ένας Χρήστης LDAP Δεν Βρέθηκε Στη Βάση Δεδομένων"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -439,6 +447,11 @@ msgstr "δεν διαμορφώθηκε"
 msgid "Execution permissions missing"
 msgstr "Λείπουν άδειες εκτέλεσης"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "Η ειδικά προσαρμοσμένη στήλη No.%(column)d δεν υπάρχει στο επίπεδο βάσης δεδομένων"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Η μορφή βιβλίου Διαγράφηκε Επιτυχώς"
@@ -447,8 +460,8 @@ msgstr "Η μορφή βιβλίου Διαγράφηκε Επιτυχώς"
 msgid "Book Successfully Deleted"
 msgstr "Το Βιβλίο Διαγράφηκε Επιτυχώς"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Σφάλμα ανοίγματος eBook. Το αρχείο δεν υπάρχει ή το αρχείο δεν είναι προσβάσιμο"
 
@@ -461,76 +474,76 @@ msgstr "επεξεργασία μεταδεδομένων"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s δεν είναι μια έγκυρη γλώσσα"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Η επέκταση αρχείου '%(ext)s' δεν επιτρέπεται να ανέβει σε αυτό το διακομιστή"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Το αρχείο προς ανέβασμα πρέπει να έχει μια επέκταση"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Αποτυχεία δημιουργίας πορείας %(path)s (Η άδεια απορρήφθηκε)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Αποτυχία αποθήκευσης αρχείου %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Σφάλμα βάσης δεδομένων: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Μορφή αρχείου %(ext)s προστέθηκε σε %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr "Τα αναγνωριστικά δεν έχουν Διάκριση Πεζών-Κεφαλαίων Γραμμάτων, Αντικατάσταση Παλιού Αναγνωριστικού"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Τα μεταδεδομένα ενημερώθηκαν επιτυχώς"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Σφάλμα επεξεργασίας βιβλίου, παρακαλούμε έλεγξε το φύλλο καταγραφής για λεπτομέρειες"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Το βιβλίο που ανέβηκε πιθανόν να υπάρχει στη βιβλιοθήκη, σκέψου να το αλλάξεις πριν ανεβάσεις νέο: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Το αρχείο %(filename)s δεν μπόρεσε να αποθηκευτεί σε temp dir"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Αποτυχία Μετακίνησης Αρχείου Φόντου %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Το αρχείο %(file)s ανέβηκε"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Η δομή πηγής ή προορισμού για μετατροπή λείπει"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Το βιβλίο είναι σε σειρά επιτυχώς για μετατροπή σε %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Υπήρξε ένα σφάλμα στη μετατροπή αυτού του βιβλίου: %(res)s"
@@ -716,7 +729,7 @@ msgstr "Καθορισμός Kobo"
 msgid "Register with %(provider)s"
 msgstr "Εγγραφή με %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "τώρα έχεις συνδεθεί ως: '%(nickname)s'"
@@ -786,7 +799,7 @@ msgstr "Όλα"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "σύνδεση"
 
@@ -802,7 +815,7 @@ msgstr "Η μάρκα έχει λήξει"
 msgid "Success! Please return to your device"
 msgstr "Επιτυχία! Παρακαλούμε επέστρεψε στη συσκευή σου"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Βιβλία"
 
@@ -827,7 +840,7 @@ msgstr "Κατεβασμένα Βιβλία"
 msgid "Show Downloaded Books"
 msgstr "Προβολή Κατεβασμένων Βιβλίων"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Βιβλία με Κορυφαία Αξιολόγηση"
 
@@ -836,7 +849,7 @@ msgid "Show Top Rated Books"
 msgstr "Προβολή Βιβλίων με Κορυφαία Αξιολόγηση"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Βιβλία που Διαβάστηκαν"
 
@@ -845,7 +858,7 @@ msgid "Show read and unread"
 msgstr "Προβολή διαβασμένων και αδιάβαστων"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Βιβλία που δεν Διαβάστηκαν"
 
@@ -863,7 +876,7 @@ msgid "Show random books"
 msgstr "Προβολή τυχαίων βιβλίων"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Κατηγορίες"
 
@@ -873,7 +886,7 @@ msgstr "Προβολή επιλογών κατηγορίας"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Σειρές"
 
@@ -891,7 +904,7 @@ msgid "Show author selection"
 msgstr "Προβολή επιλογών συγγραφέα"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Εκδότες"
 
@@ -901,7 +914,7 @@ msgstr "Προβολή επιλογών εκδότη"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Γλώσσες"
 
@@ -925,7 +938,7 @@ msgstr "Μορφές αρχείου"
 msgid "Show file formats selection"
 msgstr "Προβολή επιλογών μορφής αρχείου"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Αρχειοθετημένα Βιβλία"
 
@@ -933,7 +946,7 @@ msgstr "Αρχειοθετημένα Βιβλία"
 msgid "Show archived books"
 msgstr "Προβολή αρχειοθετημένων βιβλίων"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr "Λίστα Βιβλίων"
 
@@ -1065,190 +1078,185 @@ msgstr "Μια νέα ενημέρωση είναι διαθέσιμη. Κάνε
 msgid "No release information available"
 msgstr "Δεν υπάρχουν διαθέσιμες πληροφορίες αποδέσμευσης"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Ανακάλυψε (Τυχαία Βιβλία)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Βιβλία στη Μόδα (Με τα περισσότερα κατεβάσματα)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr "Κατεβασμένα βιβλία από %(user)s"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Oυπς! Ο επιλεγμένος τίτλος βιβλίου δεν είναι διαθέσιμος. Το αρχείο δεν υπάρχει ή δεν είναι προσβάσιμο"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Συγγραφέας: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Εκδότης: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Σειρές: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Αξιολόγηση: %(rating)s stars"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Μορφή αρχείου: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Κατηγορία: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Γλώσσα: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "Η ειδικά προσαρμοσμένη στήλη No.%(column)d δεν υπάρχει στο επίπεδο βάσης δεδομένων"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Προχωρημένη Αναζήτηση"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Αναζήτηση"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Κατεβασμένα"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Λίστα αξιολογήσεων"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Λίστα μορφών αρχείου"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Εργασίες"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Εκδόθηκε μετά"
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Εκδόθηκε πριν"
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Αξιολόγηση <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Αξιολόγηση >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Το βιβλίο έχει επιτυχώς μπει σε σειρά για αποστολή στο %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Oυπς! Υπήρξε ένα σφάλμα κατά την αποστολή αυτού του βιβλίου: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Παρακαλούμε ενημέρωσε το προφίλ σου με μια έγκυρη Διεύθυνση E-mail Αποστολής στο Kindle."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "Ο διακομιστής E-Mail δεν έχει διαμορφωθεί, παρακαλούμε επικοινώνησε με το διαχειριστή σου!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "εγγραφή"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Η διεύθυνση e-mail σου δεν επιτρέπεται να εγγραφεί"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Το e-mail επιβεβαίωσης έχει σταλεί στον e-mail λογαριασμό σου."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Δεν μπόρεσε να ενεργοποιηθεί η επαλήθευση LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Εναλλακτική Σύνδεση ως: '%(nickname)s', Ο Διακομιστής LDAP δεν είναι προσβάσιμος, ή ο χρήστης δεν είναι γνωστός"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Δεν μπόρεσε να συνδεθεί: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Λανθασμένο Όνομα Χρήστη ή Κωδικός"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Ο Νέος Κωδικός έχει σταλεί στη διεύθυνση email σου"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Παρακαλούμε συμπλήρωσε ένα έγκυρο όνομα χρήστη για επαναφορά του κωδικού"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Έχεις συνδεθεί ως: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s's προφίλ"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Το προφίλ ενημερώθηκε"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Βρέθηκε ένας ήδη υπάρχον λογαριασμός για αυτή τη διεύθυνση e-mail."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Διάβασε ένα Βιβλίο"
 
@@ -1505,7 +1513,7 @@ msgid "OK"
 msgstr "OK"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1603,13 +1611,13 @@ msgstr "Μετατροπή βιβλίου"
 msgid "Book Title"
 msgstr "Τίτλος Βιβλίου"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Συγγραφέας"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Περιγραφή"
 
@@ -1617,15 +1625,15 @@ msgstr "Περιγραφή"
 msgid "Identifiers"
 msgstr "Αναγνωριστικά"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Είδος Αναγνωριστικού"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Τιμή Αναγνωριστικού"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Αφαίρεση"
@@ -1658,8 +1666,8 @@ msgstr "Ανέβασμα Εξώφυλλου από Τοπικό Δίσκο"
 msgid "Published Date"
 msgstr "Ημερομηνία Έκδοσης"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Εκδότης"
@@ -1679,56 +1687,56 @@ msgstr "Ναι"
 msgid "No"
 msgstr "Όχι"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Μορφή Ανεβάσματος"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Προβολή Βιβλίου σε Αποθήκευση"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Συγκέντρωση Μεταδεδομένων"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Αποθήκευση"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Λέξη κλειδί"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr "Αναζήτηση λέξης κλειδιού"
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Κάνε κλικ στο εξώφυλλο για φόρτωση μεταδεδομένων στη φόρμα"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Φόρτωση..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Κλείσιμο"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Πηγή"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Σφάλμα αναζήτησης!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Δεν βρέθηκε(αν) αποτέλεσμα(τα)! Παρακαλούμε δοκίμασε μια άλλη λέξη κλειδί."
 
@@ -2253,45 +2261,45 @@ msgstr "από"
 msgid "Published"
 msgstr "Εκδόθηκε"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Σήμανση ως Αδιάβαστο"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Σήμανση ως Διαβασμένο"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Διαβάστηκε"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Επαναφορά από το αρχείο"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Προσθήκη στο αρχείο"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Αρχειοθετήθηκε"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Περιγραφή"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Προσθήκη στο ράφι"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Δημόσιο)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Επεξεργασία Μεταδεδομένων"
 
@@ -2835,6 +2843,14 @@ msgstr "Βαθμολογία Πάνω από"
 msgid "Rating Below"
 msgstr "Βαθμολογία Κάτω από"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Διαγραφή αυτού του Ραφιού"
diff --git a/cps/translations/es/LC_MESSAGES/messages.mo b/cps/translations/es/LC_MESSAGES/messages.mo
index 6d7ba02e..c0d58d04 100644
Binary files a/cps/translations/es/LC_MESSAGES/messages.mo and b/cps/translations/es/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/es/LC_MESSAGES/messages.po b/cps/translations/es/LC_MESSAGES/messages.po
index 9ea8fdc6..72b021e0 100644
--- a/cps/translations/es/LC_MESSAGES/messages.po
+++ b/cps/translations/es/LC_MESSAGES/messages.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-05-25 17:22+0200\n"
 "Last-Translator: minakmostoles <xxx@xxx.com>\n"
 "Language: es\n"
@@ -18,7 +18,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -49,9 +49,9 @@ msgstr "Reconexión correcta"
 msgid "Unknown command"
 msgstr "Comando desconocido"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Desconocido"
@@ -74,7 +74,7 @@ msgstr "Usuario administrador"
 msgid "all"
 msgstr "Todo"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Usuario no encontrado"
 
@@ -91,7 +91,7 @@ msgstr "Mostrar todo"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -99,7 +99,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "No queda ningún usuario administrador, no se puede eliminar al usuario"
 
@@ -135,303 +135,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Configuración de Calibre-Web actualizada"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "¿Realmente quieres borrar el Token de Kobo?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "¿Realmente quiere eliminar este estante?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "¿Realmente quiere eliminar este estante?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "¿Realmente quiere eliminar este estante?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Denegar"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Permitir"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json no está configurado para la aplicación web"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "La ruta del Logfile no es válida. Por favor, introduzca la ruta correcta"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "La ruta del Access Logfile no es válida. Por favor, introduzca la ruta correcta"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Por favor, introduzca un proveedor LDAP, puerto, DN y el User Object Identifier"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP Group Object Filter necesita tener un identificador de formato \"%s\""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "El LDAP Group Object Filter tiene un paréntesis diferente"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP Group Object Filter necesita tener un identificador de formato \"%s\""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "El LDAP Group Object Filter tiene un paréntesis diferente"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "La ruta del Keyfile no es válida, por favor, introduzca la ruta correcta"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "La ruta de Certfile no es válida, por favor, introduzca la ruta correcta"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "La base de datos de configuración no es modificable"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "La ruta de la base de datos no es válida. Por favor, introduzca la ruta correcta"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "La base de datos no es modificable"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Configuración básica"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "¡Por favor, completa todos los campos!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "El correo electrónico no tiene un dominio válido"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Añadir un nuevo usuario"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Usuario '%(user)s' creado"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Encontrada una cuenta existente para este correo electrónico o nombre de usuario."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Usuario '%(nick)s' borrado"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "No queda ningún usuario administrador, no se puede eliminar al usuario"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Editar Usuario %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Usuario '%(nick)s'  actualizado"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Ocurrió un error desconocido."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Cambiar parámetros de correo"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Ocurrió un error enviando el correo electrónico de prueba: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Por favor, configure su correo electrónico primero..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Actualizados los ajustes del servidor de correo electrónico"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Contraseña para el usuario %(user)s reinicializada"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Ha ocurrido un error desconocido. Por favor vuelva a intentarlo más tarde."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Configura primero los parámetros del servidor SMTP..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Visor del fichero de log"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Solicitando paquete de actualización"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Descargando paquete de actualización"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Descomprimiendo paquete de actualización"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Remplazando archivos"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Los conexiones con la base datos están cerradas"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Parando el servidor"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Actualización finalizada. Por favor, pulse OK y recargue la página"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Falló la actualización:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "Error HTTP"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Error de conexión"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Tiempo agotado mientras se trataba de establecer la conexión"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Error general"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "La actualización del archivo no pudo guardarse en el directorio temporal (Temp Dir)"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Error al crear al menos un usuario LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Error: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Error: el servidor LDAP no ha devuelto ningún usuario"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Al menos, un usuario LDAP no se ha encontrado en la base de datos"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -443,6 +451,11 @@ msgstr "no configurado"
 msgid "Execution permissions missing"
 msgstr "Faltan permisos de ejecución"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Formato de libro borrado correctamente"
@@ -451,8 +464,8 @@ msgstr "Formato de libro borrado correctamente"
 msgid "Book Successfully Deleted"
 msgstr "Libro borrado correctamente"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Error abriendo un eBook. El archivo no existe o no es accesible"
 
@@ -465,76 +478,76 @@ msgstr "editar metadatos"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s no es un idioma válido"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "No se permite subir archivos con la extensión '%(ext)s' a este servidor"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "El archivo a subir debe tener una extensión"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Fallo al crear la ruta %(path)s (permiso denegado)"
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Fallo al guardar el archivo %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Error en la base de datos: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Archivo con formato %(ext)s añadido a %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadatos actualizados correctamente"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Error al editar el libro, por favor, compruebe el archivo de registro (logfile) para tener más detalles"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "El libro cargado probablemente existe en la biblioteca, considera cambiarlo antes de subirlo de nuevo: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "El archivo %(filename)s no pudo salvarse en el directorio temporal (Temp Dir)"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Fallo al mover el archivo de cubierta %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "El fichero %(file)s ha sido subido"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Falta la fuente o el formato de destino para la conversión"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Libro puesto a la cola para su conversión a %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Ocurrió un error al convertir este libro: %(res)s"
@@ -720,7 +733,7 @@ msgstr "Configuración de Kobo"
 msgid "Register with %(provider)s"
 msgstr "Registrado con %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "has iniciado sesión como : '%(nickname)s'"
@@ -790,7 +803,7 @@ msgstr "Todo"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "iniciar sesión"
 
@@ -806,7 +819,7 @@ msgstr "El token ha expirado"
 msgid "Success! Please return to your device"
 msgstr "¡Correcto! Por favor regrese a su dispositivo"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Libros"
 
@@ -831,7 +844,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Libros mejor valorados"
 
@@ -840,7 +853,7 @@ msgid "Show Top Rated Books"
 msgstr "Mostrar libros mejor valorados"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Libros leídos"
 
@@ -849,7 +862,7 @@ msgid "Show read and unread"
 msgstr "Mostrar leídos y no leídos"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Libros no leídos"
 
@@ -867,7 +880,7 @@ msgid "Show random books"
 msgstr "Mostrar libros al azar"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Categorías"
 
@@ -877,7 +890,7 @@ msgstr "Mostrar selección de categorías"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Series"
 
@@ -895,7 +908,7 @@ msgid "Show author selection"
 msgstr "Mostrar selección de autores"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Editores"
 
@@ -905,7 +918,7 @@ msgstr "Mostrar selección de editores"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Idiomas"
 
@@ -929,7 +942,7 @@ msgstr "Formatos de archivo"
 msgid "Show file formats selection"
 msgstr "Mostrar selección de formatos de archivo"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Libros archivados"
 
@@ -937,7 +950,7 @@ msgstr "Libros archivados"
 msgid "Show archived books"
 msgstr "Mostrar libros archivados"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1069,190 +1082,185 @@ msgstr "Hay una nueva actualización disponible. Haz clic en el botón de abajo
 msgid "No release information available"
 msgstr "No hay información del lanzamiento disponible"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Descubrir (Libros al azar)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Libros populares (los más descargados)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "oh, oh, el libro seleccionado no está disponible. El archivo no existe o no es accesible"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Autor/es: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Editor/es: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Series: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Calificación: %(rating)s estrellas"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Formato del archivo: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Categoría : %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Idioma: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Búsqueda avanzada"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Buscar"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Descargas"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Lista de calificaciones"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Lista de formatos"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Tareas"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Publicado después de "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Publicado antes de "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Calificación <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Calificación >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Libro puesto en la cola de envío a %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Ha sucedido un error en el envío del libro: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Por favor actualiza tu perfil con la dirección de correo de su kindle..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "El servidor de E-Mail no está configurado, por favor, ¡avisa a tu administrador!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "registrarse"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Su correo electrónico no está permitido para registrarse"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Se ha enviado un correo electrónico de verificación a su cuenta de correo."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "No se puede activar la autenticación LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Fallback login como: '%(nickname)s', no se puede acceder al servidor LDAP o usuario desconocido"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "No se pudo entrar: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Usuario o contraseña inválido"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Una nueva contraseña se ha enviado a su cuenta de correo electrónico"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Por favor, introduce un usuario válido para restablecer la contraseña"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Ahora estás conectado como: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Perfil de %(name)s"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Perfil actualizado"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Encontrada una cuenta existente para esa dirección de correo electrónico."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Leer un libro"
 
@@ -1509,7 +1517,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1607,13 +1615,13 @@ msgstr "Convertir libro"
 msgid "Book Title"
 msgstr "Título del libro"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Autor"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Descripción"
 
@@ -1621,15 +1629,15 @@ msgstr "Descripción"
 msgid "Identifiers"
 msgstr "Identificadores"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Tipo de identificador"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Valor de identificador"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Borrar"
@@ -1662,8 +1670,8 @@ msgstr "Subir portada desde un disco local"
 msgid "Published Date"
 msgstr "Fecha de publicación"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Editor"
@@ -1683,56 +1691,56 @@ msgstr "Sí"
 msgid "No"
 msgstr "No"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Subir formato"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Ver libro tras la edición"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Obtener metadatos"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Guardar"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Palabra clave"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Buscar por palabras clave "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Haz clic en la portada para cargar los metadatos en el formulario"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Cargando..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Cerrar"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Origen"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "¡Error en la búsqueda!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "¡No se encontraron resultados! Por favor intenta con otra palabra clave."
 
@@ -2257,45 +2265,45 @@ msgstr "de"
 msgid "Published"
 msgstr "Publicado"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Marcar como no leido"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Marcar como leido"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Leído"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Restarurar desde el archivo"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Añadir a archivación"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Archivado"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Descripción:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Agregar al estante"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Público)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Editar metadatos"
 
@@ -2839,6 +2847,14 @@ msgstr "Clasificación mayor que"
 msgid "Rating Below"
 msgstr "Clasificación menor que"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Borrar este estante"
diff --git a/cps/translations/fi/LC_MESSAGES/messages.mo b/cps/translations/fi/LC_MESSAGES/messages.mo
index e98647ed..cf41ac42 100644
Binary files a/cps/translations/fi/LC_MESSAGES/messages.mo and b/cps/translations/fi/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/fi/LC_MESSAGES/messages.po b/cps/translations/fi/LC_MESSAGES/messages.po
index a705dd4f..d67a2fb5 100644
--- a/cps/translations/fi/LC_MESSAGES/messages.po
+++ b/cps/translations/fi/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-01-12 13:56+0100\n"
 "Last-Translator: Samuli Valavuo <svalavuo@gmail.com>\n"
 "Language: fi\n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -46,9 +46,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Tuntematon"
@@ -71,7 +71,7 @@ msgstr "Pääkäyttäjä"
 msgid "all"
 msgstr "Kaikki"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -88,7 +88,7 @@ msgstr "Näytä kaikki"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -96,7 +96,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -132,303 +132,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Calibre-Web asetukset päivitetty"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Oletko varma, että haluat poistaa hyllyn?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Oletko varma, että haluat poistaa hyllyn?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Oletko varma, että haluat poistaa hyllyn?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Perusasetukset"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Ole hyvä ja täytä kaikki kentät!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "Sähköpostiosoite ei ole toimivasta domainista"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Lisää uusi käyttäjä"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Käyttäjä '%(user)s' lisätty"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Tälle sähköpostiosoitteelle tai tunnukselle löytyi jo tili."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Käyttäjä '%(nick)s' poistettu"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Pääkäyttäjiä ei jää jäljelle, käyttäjää ei voi poistaa"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Muokkaa käyttäjää %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Käyttäjä '%(nick)s' päivitetty"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Tapahtui tuntematon virhe."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Muuta SMTP asetuksia"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Testisähköpostin lähetyksessä tapahtui virhe: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr ""
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Sähköpostipalvelimen tiedot päivitetty"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Käyttäjän %(user)s salasana palautettu"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Tapahtui tuntematon virhe. Yritä myöhemmin uudelleen."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Ole hyvä ja aseta SMTP postiasetukset ensin..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Lokitiedoston katselin"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Haetaan päivitystiedostoa"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Ladataan päivitystiedostoa"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Puretaan päivitystiedostoa"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Korvataan tiedostoja"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Tietokantayhteydet on katkaistu"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Sammutetaan palvelin"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Päivitys valmistui, ole hyvä ja paina OK ja lataa sivu uudelleen"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Päivitys epäonnistui:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP virhe"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Yhteysvirhe"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Aikakatkaisu yhteyttä luotaessa"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Yleinen virhe"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -440,6 +448,11 @@ msgstr ""
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -448,8 +461,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Virhe e-kirjaa avatessa. Tiedostoa ei löydy tai se ei ole saatavilla"
 
@@ -462,76 +475,76 @@ msgstr "muokkaa metadataa"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s ei ole kelvollinen kieli"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Tiedostopääte '%(ext)s' ei ole sallittujen palvelimelle ladattavien listalla"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Ladattavalla tiedostolla on oltava tiedostopääte"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Polun %(path)s luonti epäonnistui (Ei oikeutta)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Tiedoston %(file)s tallennus epäonnistui."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Tiedostoformaatti %(ext)s lisätty %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadata päivitetty onnistuneesti"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Kirjan editoinnissa tapahtui virhe, tarkista virheilmoitus lokista"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr ""
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr ""
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Tiedosto %(file)s tallennettu"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Lähteen tai kohteen tiedostomuoto puuttuu"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Kirja lisätty muutosjonoon muotoon %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Kirjan muunnoksessa tapahtui virhe: %(res)s"
@@ -717,7 +730,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr "Rekisteröi tuottajalle %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "olet nyt kirjautunut tunnuksella: \"%(nickname)s\""
@@ -787,7 +800,7 @@ msgstr "Kaikki"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "kirjaudu"
 
@@ -803,7 +816,7 @@ msgstr "Valtuutus vanhentunut"
 msgid "Success! Please return to your device"
 msgstr "Onnistui! Ole hyvä ja palaa laitteellesi"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Kirjat"
 
@@ -828,7 +841,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Parhaiten arvioidut kirjat"
 
@@ -837,7 +850,7 @@ msgid "Show Top Rated Books"
 msgstr "Näytä parhaiten arvioidut kirjat"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Luetut kirjat"
 
@@ -846,7 +859,7 @@ msgid "Show read and unread"
 msgstr "Näytä luetut ja lukemattomat"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Lukemattomat kirjat"
 
@@ -864,7 +877,7 @@ msgid "Show random books"
 msgstr "Näytä satunnaisia kirjoja"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Kategoriat"
 
@@ -874,7 +887,7 @@ msgstr "Näytä kategoriavalinta"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Sarjat"
 
@@ -892,7 +905,7 @@ msgid "Show author selection"
 msgstr "Näytä kirjailijavalinta"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Julkaisijat"
 
@@ -902,7 +915,7 @@ msgstr "Näytä julkaisijavalinta"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Kielet"
 
@@ -926,7 +939,7 @@ msgstr "Tiedotomuodot"
 msgid "Show file formats selection"
 msgstr "Näytä tiedostomuotovalinta"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -934,7 +947,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1066,190 +1079,185 @@ msgstr "Uusi päivitys saatavilla. Paina alla olevaa nappia päivittääksesi ve
 msgid "No release information available"
 msgstr "Ei päivitystietoa saatavilla"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Löydä (satunnaiset kirjat)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Kuumat kirjat (ladatuimmat)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Virhe eKirjan avaamisessa. Tiedostoa ei ole tai se ei ole saatavilla:"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Kirjailija: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Julkaisija: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Sarja: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Arvostelu: %(rating)s tähteä"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Tiedostomuoto: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Kategoria: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Kieli: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Edistynyt haku"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Hae"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "DLS"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Arvostelulistaus"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Tiedostomuotolistaus"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Tehtävät"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Julkaistu alkaen "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Julkaisut ennen "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Arvostelu <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Arvostelu >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Kirja lisätty onnistuneeksi lähetettäväksi osoitteeseen %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Kirjan: %(res)s lähettämisessa tapahtui virhe"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Ole hyvä ja aseta Kindle sähköpostiosoite ensin..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr ""
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "rekisteröidy"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Sähköpostiosoitteellasi ei ole sallittua rekisteröityä"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Vahvistusviesti on lähetetty sähköpostiosoitteeseesi."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "LDAP autnetikoinnin aktivointi ei onnistu"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Väärä käyttäjätunnus tai salasana"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr ""
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr ""
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "olet kirjautunut tunnuksella: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)sn profiili"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profiili päivitetty"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Tälle sähköpostiosoitteelle läytyi jo käyttäjätunnus."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Lue kirja"
 
@@ -1506,7 +1514,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1604,13 +1612,13 @@ msgstr "Muunna kirja"
 msgid "Book Title"
 msgstr "Kirjan otsikko"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Kirjailija"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Kuvaus"
 
@@ -1618,15 +1626,15 @@ msgstr "Kuvaus"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1659,8 +1667,8 @@ msgstr "Lataa kuva paikalliselta levyltä"
 msgid "Published Date"
 msgstr "Julkaisupäivä"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Julkaisija"
@@ -1680,56 +1688,56 @@ msgstr "Kyllä"
 msgid "No"
 msgstr "Ei"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Lataa tiedostomuoto"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "katso kirjaa muokkauksen jälkeen"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Hae metadata"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Avainsana"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Hae avainsanaa "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Klikkaa kantta ladataksesi metadata lomakkeelle"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Ladataan..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Sulje"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Lähde"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Hakuvirhe!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Ei osumia! Kokeile jotain tosita hakusanaa."
 
@@ -2254,45 +2262,45 @@ msgstr ""
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Merkitse lukemattomaksi"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Merkitse luetuksi"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Luettu"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Kuvaus:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Lisää hyllyyn"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Muokkaa metadataa"
 
@@ -2836,6 +2844,14 @@ msgstr "Arvio enemmän kun"
 msgid "Rating Below"
 msgstr "Arvio vähemmän kun"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Poista tämä hylly"
diff --git a/cps/translations/fr/LC_MESSAGES/messages.mo b/cps/translations/fr/LC_MESSAGES/messages.mo
index 49f57309..f6a77a96 100644
Binary files a/cps/translations/fr/LC_MESSAGES/messages.mo and b/cps/translations/fr/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/fr/LC_MESSAGES/messages.po b/cps/translations/fr/LC_MESSAGES/messages.po
index 0588d41b..32e21cf1 100644
--- a/cps/translations/fr/LC_MESSAGES/messages.po
+++ b/cps/translations/fr/LC_MESSAGES/messages.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-06-07 06:47+0200\n"
 "Last-Translator: Dekani <dekani1500@gmail.com>\n"
 "Language: fr\n"
@@ -30,7 +30,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -60,9 +60,9 @@ msgstr "Reconnecté avec succès"
 msgid "Unknown command"
 msgstr "Commande inconnue"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Inconnu"
@@ -85,7 +85,7 @@ msgstr "Utilisateur admin"
 msgid "all"
 msgstr "Tout"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "L'utilisateur n'a pas été trouvé"
 
@@ -102,7 +102,7 @@ msgstr "Montrer tout"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -110,7 +110,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Aucun utilisateur admin restant, impossible de supprimer le rôle admin"
 
@@ -146,303 +146,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Configuration de Calibre-Web mise à jour"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Voulez-vous vraiment supprimer le jeton Kobo?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Voulez-vous vraiment supprimer l’étagère?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Voulez-vous vraiment supprimer l’étagère?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Voulez-vous vraiment supprimer l’étagère?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Refuser"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Autoriser"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json n'est pas configuré pour l'application Web"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "L'emplacement du fichier logfile est incorrect, veuillez saisir un chemin valide"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "L'emplacement du fichier Access Logfile est incorrect, veuillez saisir un chemin valide"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Veuillez saisir un fournisseur LDAP, Port, DN et l'identifiant objet de l'utilisateur"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "Le filtre objet du groupe LDAP a besoin d'un identifiant de format \"%s\""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "Le filtre objet du groupe LDAP a une parenthèse non gérée"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "Le filtre objet de l'utilisateur LDAP a besoin d'un identifiant de format \"%s\""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "Le filtre objet de l'utilisateur LDAP a une parenthèse non gérée"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "L'emplacement du fichier Keyfile est incorrect, veuillez saisir un chemin valide"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "L'emplacement du fichier Certfile est incorrect, veuillez saisir un chemin valide"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "L'emplacement DB est incorrect, veuillez saisir un chemin valide"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "La DB n'est pas accessible en écriture"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Configuration principale"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Veuillez compléter tous les champs !"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "Cette adresse de courriel n’appartient pas à un domaine valide"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Ajouter un nouvel utilisateur"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Utilisateur '%(user)s' créé"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Un compte existant a été trouvé pour cette adresse de courriel ou pour ce surnom."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Utilisateur '%(nick)s' supprimé"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Aucun utilisateur admin restant, impossible de supprimer l’utilisateur"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Éditer l'utilisateur %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Utilisateur '%(nick)s'  mis à jour"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Oups ! Une erreur inconnue a eu lieu."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Modifier les paramètres du serveur de courriels"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Il y a eu une erreur pendant l’envoi du courriel de test : %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Veuillez d'abord configurer votre adresse de courriel..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Les paramètres du serveur de courriels ont été mis à jour"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Le mot de passe de l’utilisateur %(user)s a été réinitialisé"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Une erreur inconnue est survenue. Veuillez réessayer plus tard."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Veuillez configurer les paramètres SMTP au préalable..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Visualiseur de fichier journal"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Demande de mise à jour"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Téléchargement de la mise à jour"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Décompression de la mise à jour"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Remplacement des fichiers"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Les connexions à la base de données ont été fermées"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Arrêt du serveur"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Mise à jour terminée, merci d’appuyer sur okay et de rafraîchir la page"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "La mise à jour a échoué :"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "Erreur HTTP"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Erreur de connexion"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Délai d'attente dépassé lors de l'établissement de connexion"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Erreur générale"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Le fichier de mise à jour ne peut pas être sauvegardé dans le répertoire temporaire"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Impossible de créer au moins un utilisateur LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Erreur : %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Erreur : Aucun utilisateur renvoyé dans la réponse LDAP du serveur"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Au moins un utilisateur LDAP n'a pas été trouvé dans la base de données"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -454,6 +462,11 @@ msgstr "non configuré"
 msgid "Execution permissions missing"
 msgstr "Les permissions d'exécutions manquantes"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "La colonne personnalisée No.%(column)d n'existe pas dans la base de données calibre"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Le format du livre a été supprimé avec succès"
@@ -462,8 +475,8 @@ msgstr "Le format du livre a été supprimé avec succès"
 msgid "Book Successfully Deleted"
 msgstr "Le livre a été supprimé avec succès"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Erreur à l’ouverture du livre. Le fichier n’existe pas ou n’est pas accessible"
 
@@ -476,76 +489,76 @@ msgstr "modifier les métadonnées"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s n'est pas une langue valide"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "L’extension de fichier '%(ext)s' n’est pas autorisée pour être déposée sur ce serveur"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Pour être déposé le fichier doit avoir une extension"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Impossible de créer le chemin %(path)s (Permission refusée)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Échec de la sauvegarde du fichier %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Erreur de la base de données: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Le format de fichier %(ext)s a été ajouté à %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Les métadonnées ont bien été mises à jour"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Erreur d’édition du livre, veuillez consulter le journal (log) pour plus de détails"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Le fichier téléchargé existe probablement dans la librairie, veuillez le modifier avant de le télécharger de nouveau: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Le fichier %(filename)s ne peut pas être sauvegardé dans le répertoire temporaire"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Impossible de déplacer le fichier de couverture %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Le fichier %(file)s a été téléchargé"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Le format de conversion de la source ou de la destination est manquant"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Le livre a été mis avec succès en file de traitement pour conversion vers %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Une erreur est survenue au cours de la conversion du livre : %(res)s"
@@ -731,7 +744,7 @@ msgstr "Configuration Kobo"
 msgid "Register with %(provider)s"
 msgstr "Enregistrer avec %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "vous êtes maintenant connecté comme : '%(nickname)s'"
@@ -801,7 +814,7 @@ msgstr "Tout"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "connexion"
 
@@ -817,7 +830,7 @@ msgstr "Jeton expiré"
 msgid "Success! Please return to your device"
 msgstr "Réussite! Merci de vous tourner vers votre appareil"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Livres"
 
@@ -842,7 +855,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Livres les mieux notés"
 
@@ -851,7 +864,7 @@ msgid "Show Top Rated Books"
 msgstr "Montrer les livres les mieux notés"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Livres lus"
 
@@ -860,7 +873,7 @@ msgid "Show read and unread"
 msgstr "Montrer lus et non-lus"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Livres non-lus"
 
@@ -878,7 +891,7 @@ msgid "Show random books"
 msgstr "Montrer des livres au hasard"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Catégories"
 
@@ -888,7 +901,7 @@ msgstr "Montrer la sélection par catégories"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Séries"
 
@@ -906,7 +919,7 @@ msgid "Show author selection"
 msgstr "Montrer la sélection par auteur"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Éditeurs"
 
@@ -916,7 +929,7 @@ msgstr "Montrer la sélection par éditeur"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Langues"
 
@@ -940,7 +953,7 @@ msgstr "Formats de fichier"
 msgid "Show file formats selection"
 msgstr "Afficher la sélection des formats de fichiers"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Livres archivés"
 
@@ -948,7 +961,7 @@ msgstr "Livres archivés"
 msgid "Show archived books"
 msgstr "Afficher les livres archivés"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1080,190 +1093,185 @@ msgstr "Une nouvelle mise à jour est disponible. Cliquez sur le bouton ci-desso
 msgid "No release information available"
 msgstr "Aucune information concernant cette version n’est disponible"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Découvrir (Livres au hasard)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Livres populaires (les plus téléchargés)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Erreur d'ouverture du livre numérique. Le fichier n'existe pas ou n'est pas accessible"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Auteur : %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Éditeur : '%(name)s'"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Séries : %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Évaluation : %(rating)s étoiles"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Format de fichier : %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Catégorie : %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Langue : %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "La colonne personnalisée No.%(column)d n'existe pas dans la base de données calibre"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Recherche avancée"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Chercher"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Téléchargements"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Liste des évaluations"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Liste de formats de fichiers"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Tâches"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Publié après le "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Publié avant le "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Évaluation <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Évaluation >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Le livre a été mis en file de traitement avec succès pour un envoi vers %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Il y a eu une erreur en envoyant ce livre : %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Veuillez mettre à jour votre profil avec une adresse de courriel Kindle valide."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "Le serveur de courriel n'est pas configuré, veuillez contacter votre administrateur!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "s’enregistrer"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Votre adresse de courriel n’est pas autorisé pour une inscription"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Le courriel de confirmation a été envoyé à votre adresse."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Impossible d’activer l’authentification LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Connexion de secours comme: '%(nickname)s', le serveur LDAP est indisponible, ou l'utilisateur est inconnu"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Impossible de se connecter: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Mauvais nom d'utilisateur ou mot de passe"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Le nouveau mot de passe a été envoyé vers votre adresse de courriel"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Veuillez entrer un nom d'utilisateur valide pour réinitialiser le mot de passe"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Vous êtes maintenant connecté en tant que : ‘%(nickname)s’"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Profil de %(name)s"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profil mis à jour"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Un compte existant a été trouvé pour cette adresse de courriel."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Lire un livre"
 
@@ -1520,7 +1528,7 @@ msgid "OK"
 msgstr "OK"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1618,13 +1626,13 @@ msgstr "Convertir le livre"
 msgid "Book Title"
 msgstr "Titre du livre"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Auteur"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Description"
 
@@ -1632,15 +1640,15 @@ msgstr "Description"
 msgid "Identifiers"
 msgstr "Identifiants"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Type d'identifiant"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Valeur d'identifiant"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Supprimer"
@@ -1673,8 +1681,8 @@ msgstr "Téléverser la couverture depuis un fichier en local"
 msgid "Published Date"
 msgstr "Date de publication"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Éditeur"
@@ -1694,56 +1702,56 @@ msgstr "Oui"
 msgid "No"
 msgstr "Non"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Format du fichier téléversé"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Voir le livre lors de la sauvegarde"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Obtenir les métadonnées"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Sauvegarder"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Mot-clé"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Rechercher le mot-clé "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Cliquer sur la couverture pour importer les métadonnées dans le formulaire"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Chargement..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Fermer"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Source"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Erreur lors de la recherche!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Aucun résultat. Veuillez essayer avec un nouveau mot clé."
 
@@ -2268,45 +2276,45 @@ msgstr "de"
 msgid "Published"
 msgstr "Publié"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Marquer comme non lu"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Marquer comme lu"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Lu"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Restaurer à partir de l'archive"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Ajouter comme archive"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Archivé"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Description :"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Ajouter à l'étagère"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Public)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Éditer les métadonnées"
 
@@ -2850,6 +2858,14 @@ msgstr "Évaluation supérieure à"
 msgid "Rating Below"
 msgstr "Évaluation inférieure à"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Supprimer cette étagère"
diff --git a/cps/translations/hu/LC_MESSAGES/messages.mo b/cps/translations/hu/LC_MESSAGES/messages.mo
index 277c70b2..ad75c6bc 100644
Binary files a/cps/translations/hu/LC_MESSAGES/messages.mo and b/cps/translations/hu/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/hu/LC_MESSAGES/messages.po b/cps/translations/hu/LC_MESSAGES/messages.po
index 5d1cc0d7..b2b2c036 100644
--- a/cps/translations/hu/LC_MESSAGES/messages.po
+++ b/cps/translations/hu/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2019-04-06 23:36+0200\n"
 "Last-Translator: \n"
 "Language: hu\n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -46,9 +46,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Ismeretlen"
@@ -70,7 +70,7 @@ msgstr "Rendszergazda felhasználó"
 msgid "all"
 msgstr ""
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -87,7 +87,7 @@ msgstr "Mindent mutass"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -95,7 +95,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -131,303 +131,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "A Calibre-Web konfigurációja frissítve."
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Valóban törölni akarod a polcot?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Valóban törölni akarod a polcot?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Valóban törölni akarod a polcot?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Alapvető beállítások"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Az összes mezőt ki kell tölteni!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "Az e-mail tartománya nem érvényes."
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Új felhasználó hozzáadása"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "A következő felhasználó létrehozva: %(user)s"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Már létezik felhasználó ehhez az e-mail címhez vagy felhasználói névhez."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "A felhasználó törölve: %(nick)s"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr ""
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr " A felhasználó szerkesztése: %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "A felhasználó frissítve: %(nick)s"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Ismeretlen hiba történt."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "SMTP beállítások változtatása"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Hiba történt a teszt levél küldése során: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr ""
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Az e-mail kiszolgáló beállításai frissítve."
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "A(z) %(user)s felhasználó jelszavának alaphelyzetbe állítása"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Ismeretlen hiba történt. Próbáld újra később!"
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Először be kell állítani az SMTP levelező beállításokat..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr ""
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Frissítési csomag kérése"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Frissítési csomag letöltése"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Frissítési csomag kitömörítése"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Fájlok cserélése"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Adatbázis kapcsolatok lezárva"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Szerver leállítása"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "A frissítés települt, kattints az OK-ra és újra tölt az oldal"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "A frissítés nem sikerült:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP hiba"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Kapcsolódási hiba"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Időtúllépés a kapcsolódás során"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Általános hiba"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -439,6 +447,11 @@ msgstr ""
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -447,8 +460,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Hiba az ekönyv megnyitásakor. A fájl nem létezik vagy nem elérhető."
 
@@ -461,76 +474,76 @@ msgstr "Metaadatok szerkesztése"
 msgid "%(langname)s is not a valid language"
 msgstr "A(z) %(langname)s nem érvényes nyelv"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "A(z) \"%(ext)s\" kiterjesztésű fájlok feltöltése nincs engedélyezve ezen a szerveren."
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "A feltöltendő fájlnak kiterjesztéssel kell rendelkeznie!"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Nem sikerült létrehozni az elérési utat (engedély megtagadva): %(path)s."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Nem sikerült elmenteni a %(file)s fájlt."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "A(z) %(ext)s fájlformátum hozzáadva a könyvhez: %(book)s."
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "A metaadatok sikeresen frissültek"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Hiba a könyv szerkesztése során, további részletek a naplófájlban."
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr ""
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr ""
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr ""
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Az átalakításhoz hiányzik a forrás- vagy a célformátum!"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "A könyv sikeresen átalakításra lett jelölve a következő formátumra: %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Hiba történt a könyv átalakításakor: %(res)s"
@@ -716,7 +729,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr ""
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "Be vagy jelentkezve mint: %(nickname)s"
@@ -786,7 +799,7 @@ msgstr ""
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "belépés"
 
@@ -802,7 +815,7 @@ msgstr "A token érvényessége lejárt."
 msgid "Success! Please return to your device"
 msgstr "Sikerült! Újra használható az eszköz."
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr ""
 
@@ -827,7 +840,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Legjobb könyvek"
 
@@ -836,7 +849,7 @@ msgid "Show Top Rated Books"
 msgstr "Legjobbra értékelt könyvek mutatása"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Olvasott könyvek"
 
@@ -845,7 +858,7 @@ msgid "Show read and unread"
 msgstr "Mutassa az olvasva/olvasatlan állapotot"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Olvasatlan könyvek"
 
@@ -863,7 +876,7 @@ msgid "Show random books"
 msgstr "Könyvek találomra mutatása"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Címkék"
 
@@ -873,7 +886,7 @@ msgstr "Címke választó mutatása"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Sorozatok"
 
@@ -891,7 +904,7 @@ msgid "Show author selection"
 msgstr "Szerző választó mutatása"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Kiadók"
 
@@ -901,7 +914,7 @@ msgstr "Kiadó választó mutatása"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Nyelvek"
 
@@ -925,7 +938,7 @@ msgstr ""
 msgid "Show file formats selection"
 msgstr ""
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -933,7 +946,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1065,190 +1078,185 @@ msgstr "Új frissítés érhető el. Kattints az alábbi gombra a frissítéshez
 msgid "No release information available"
 msgstr "Nincs információ a kiadásról."
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Felfedezés (könyvek találomra)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Kelendő könyvek (legtöbbet letöltöttek)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Hiba történt az e-könyv megnyitásakor. A fájl nem létezik vagy nem érhető el:"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr ""
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Kiadó: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Sorozat: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr ""
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr ""
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Címke: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Nyelv: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Részletes keresés"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Keresés"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Letöltések"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr ""
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr ""
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Feladatok"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Kiadva ezután: "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Kiadva ezelőtt: "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Értékelés <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Értékelés <= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "A könyv sikeresen küldésre lett jelölve a következő címre: %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Hiba történt a könyv küldésekor: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Először be kell állítani a kindle e-mail címet..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr ""
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "regisztrálás"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Nem engedélyezett a megadott e-mail cím bejegyzése"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Jóváhagyó levél elküldve az email címedre."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr ""
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Rossz felhasználó név vagy jelszó!"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr ""
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr ""
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr ""
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s profilja"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "A profil frissítve."
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Már létezik felhasználó ehhez az e-mail címhez."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Egy olvasott könyv"
 
@@ -1505,7 +1513,7 @@ msgid "OK"
 msgstr "OK"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1603,13 +1611,13 @@ msgstr "Könyv konvertálása"
 msgid "Book Title"
 msgstr "Könyv címe"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Szerző"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Leírás"
 
@@ -1617,15 +1625,15 @@ msgstr "Leírás"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1658,8 +1666,8 @@ msgstr "Borító feltöltése helyi meghajtóról"
 msgid "Published Date"
 msgstr "Kiadás éve"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Kiadó"
@@ -1679,56 +1687,56 @@ msgstr "Igen"
 msgid "No"
 msgstr "Nem"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Feltöltés formátuma"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Könyv megnézése szerkesztés után"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Metaadatok beszerzése"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Kulcsszó"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Keresési kulcsszó "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Kattints a borítóra a metadatok betöltésére"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Betöltés..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Bezárás"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Forrás"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Keresési hiba!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Nincs találat! Próbálj másik kulcsszót."
 
@@ -2253,45 +2261,45 @@ msgstr "kötete a sorozatnak:"
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Legyen olvasatlan"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Legyen olvasott"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Olvasva"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Ismertető:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Hozzáadás polchoz"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Metaadatok szerkesztése"
 
@@ -2835,6 +2843,14 @@ msgstr "Értékelés nagyob mint"
 msgid "Rating Below"
 msgstr "Értékelés kisebb mint"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Polc törlése"
diff --git a/cps/translations/it/LC_MESSAGES/messages.mo b/cps/translations/it/LC_MESSAGES/messages.mo
index 36e5189a..07bc68a6 100644
Binary files a/cps/translations/it/LC_MESSAGES/messages.mo and b/cps/translations/it/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/it/LC_MESSAGES/messages.po b/cps/translations/it/LC_MESSAGES/messages.po
index b8936aa6..414583b8 100644
--- a/cps/translations/it/LC_MESSAGES/messages.po
+++ b/cps/translations/it/LC_MESSAGES/messages.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2017-04-04 15:09+0200\n"
 "Last-Translator: ElQuimm <quimm@webtaste.com>\n"
 "Language: it\n"
@@ -15,7 +15,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -45,9 +45,9 @@ msgstr "Ricollegato con successo"
 msgid "Unknown command"
 msgstr "Comando sconosciuto"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Sconosciuto"
@@ -68,7 +68,7 @@ msgstr "Modifica gli utenti"
 msgid "all"
 msgstr "tutti"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Utente non trovato"
 
@@ -86,7 +86,7 @@ msgstr "tutte le lingue presenti"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr "Il nome dell'utente Guest (ospite) non può essere modificato"
 
@@ -94,7 +94,7 @@ msgstr "Il nome dell'utente Guest (ospite) non può essere modificato"
 msgid "Guest can't have this role"
 msgstr "L'utente Guest (ospite) non può avere questo ruolo"
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Non rimarrebbe nessun utente amministratore, non posso rimuovere il ruolo di amministratore"
 
@@ -130,301 +130,309 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "La configurazione di Calibre-Web è stata aggiornata"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Vuoi veramente eliminare il token di Kobo?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr "Vuoi veramente eliminare questo dominio?"
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr "Vuoi veramente eliminare questo utente?"
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Vuoi veramente eliminare questo scaffale?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Sei sicuro di voler modificare le impostazioni locali dell'/degli utente/i selezionato/i?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr "Sei sicuro di voler modificare le impostazioni delle lingue visualizzabili dell'/degli utente/i selezionato/i?"
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr "Sei sicuro di voler modificare il ruolo evidenziato dell'/degli utente/i selezionato/i?"
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Sei sicuro di voler modificare le impostazioni delle restrizioni di visualizzazione dell'/degli utente/i selezionato/i?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr "Sei sicuro di voler modificare le impostazioni delle restrizioni di visualizzazione dell'/degli utente/i selezionato/i?"
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Nega"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Permetti"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json non è configurato per Web Application"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "La posizione del Logfile non è valida, per favore indica il percorso corretto"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "La posizione dell'Access Logfile non è valida, per favore indica il percorso corretto"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Per favore digita un Provider LDAP, porta, DN e User Object Identifier"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP Group Object Filter deve avere un \"%s\" Format Identifier"
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "LDAP Group Object Filter contiene una parentesi senza la corrispettiva"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP User Object Filter deve avere un \"%s\" Format Identifier"
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "LDAP User Object Filter contiene una parentesi senza la corrispettiva"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP Member User Filter deve avere un \"%s\" Format Identifier"
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr "LDAP Member User Filter contiene una parentesi senza la corrispettiva"
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr "LDAP CACertificate, il certificato o la posizione della chiave non sono corretti, per favore indica il percorso corretto"
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "La posizione del Keyfile non è valida, per favore indica il percorso corretto"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "La posizione del Certfile non è valida, per favore indica il percorso corretto"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "I parametri del DB non sono scrivibili"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "La posizione del DB non è valida, per favore indica il percorso corretto"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "Il DB non è scrivibile"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Configurazione di base"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Per favore compila tutti i campi!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "L'e-mail non proviene da un dominio valido"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Aggiungi un nuovo utente"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "L'utente '%(user)s' è stato creato"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Trovato un account esistente con questo e-mail o nome di utente"
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "L'utente '%(nick)s' è stato eliminato"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr "Non posso eliminare l'utente Guest (ospite)"
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Non rimarrebbe nessun utente amministratore, non posso eliminare l'utente"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Modifica l'utente %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "L'utente '%(nick)s' è stato aggiornato"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Si è verificato un errore imprevisto."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Modifica le impostazioni del server e-mail"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr "L'account g-mail è stato verificato con successo"
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr "L'e-mail di test è stato accodato con successo per essere spedito a  %(email)s, per favore verifica tramite il pulsante 'Compito' il risultato"
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Si è verificato un errore nell'invio dell'e-mail di test: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Per favore prima configura il tuo indirizzo e-mail..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Configurazione del server e-mail aggiornata"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "La password dell'utente %(user)s è stata resettata"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Si è verificato un errore sconosciuto: per favore riprova."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Configura dapprima le impostazioni del server SMTP..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Visualizzatore del Logfile"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Richiedo il pacchetto di aggiornamento"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Scarico il pacchetto di aggiornamento"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Decomprimo il pacchetto di aggiornamento"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Sostituisco i file"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Le connessioni al database sono chiuse"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Arresto il server"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Aggiornamento completato, per favore premi ok e ricarica la pagina"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Aggiornamento non riuscito:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "Errore HTTP"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Errore di connessione"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Tempo scaduto nello stabilire la connessione"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Errore generale"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Il file di aggiornamento non può essere salvato nella cartella temporanea"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Fallita la creazione di almeno un utente LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Errore: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Errore: nessun utente restituito in risposta dal server LDAP"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Almeno un utente LDAP non è stato trovato nel database"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr "{} utente importato con successo"
 
@@ -436,6 +444,11 @@ msgstr "non configurato"
 msgid "Execution permissions missing"
 msgstr "Mancano i permessi di esecuzione"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "La colonna personale no.%(column)d non esiste nel database di Calibre"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Il formato del libro è stato eliminato con successo"
@@ -444,8 +457,8 @@ msgstr "Il formato del libro è stato eliminato con successo"
 msgid "Book Successfully Deleted"
 msgstr "Il libro é stato eliminato con successo"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Errore durante l'apertura del libro. Il file non esiste o il file non è accessibile"
 
@@ -458,76 +471,76 @@ msgstr "modifica i metadati"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s non è una lingua valida"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Non è consentito caricare file con l'estensione '%(ext)s' su questo server"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Il file da caricare deve avere un'estensione"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Impossibile creare la cartella %(path)s (autorizzazione negata)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Il salvataggio del file %(file)s non è riuscito."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Errore nel database: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Ho aggiunto il formato %(ext)s al libro %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr "Gli identificatori non tengono conto delle lettere maiuscole o minuscole, sovrascrivo l'identificatore precedente"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "I metadati sono stati aggiornati con successo"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Errore nella modifica del libro. Per favore verifica i dettagli nel file di registro (logfile)"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Probabilmente il libro caricato esiste già nella libreria; considera di cambiare prima di sottoporlo nuovamente: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Il file %(filename)s non può essere salvato nella cartella temporanea"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Impossibile spostare il file della copertina %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Il file %(file)s è stato caricato"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Mancano o il formato sorgente o quello di destinazione, entrambi necessari alla conversione"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Libro accodato con successo per essere convertito in %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Si è verificato un errore durante la conversione del libro: %(res)s"
@@ -712,7 +725,7 @@ msgstr "Configurazione di Kobo"
 msgid "Register with %(provider)s"
 msgstr "Registra con %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "ora sei connesso come: '%(nickname)s'"
@@ -782,7 +795,7 @@ msgstr "Tutti"
 msgid "{} Stars"
 msgstr "{} Stelle"
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "accedi"
 
@@ -798,7 +811,7 @@ msgstr "Il token è scaduto"
 msgid "Success! Please return to your device"
 msgstr "Riuscito! Torna al tuo dispositivo"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Libri"
 
@@ -823,7 +836,7 @@ msgstr "Libri scaricati"
 msgid "Show Downloaded Books"
 msgstr "Mostra l'opzione per la visualizzazione dei libri scaricati"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Libri meglio valutati"
 
@@ -832,7 +845,7 @@ msgid "Show Top Rated Books"
 msgstr "Mostra l'opzione per la selezione dei libri meglio valutati"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Libri da leggere"
 
@@ -841,7 +854,7 @@ msgid "Show read and unread"
 msgstr "Mostra l'opzione per la selezione letto e non letto"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Libri non letti"
 
@@ -859,7 +872,7 @@ msgid "Show random books"
 msgstr "Mostra l'opzione per presentare libri aleatoriamente"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Categorie"
 
@@ -869,7 +882,7 @@ msgstr "Mostra l'opzione per la selezione delle categorie"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Serie"
 
@@ -887,7 +900,7 @@ msgid "Show author selection"
 msgstr "Mostra l'opzione per la selezione degli autori"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Editori"
 
@@ -897,7 +910,7 @@ msgstr "Mostra l'opzione per la selezione degli editori"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Lingue"
 
@@ -921,7 +934,7 @@ msgstr "Formati file"
 msgid "Show file formats selection"
 msgstr "Mostra l'opzione per la selezione del formato dei file"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Libri archiviati"
 
@@ -929,7 +942,7 @@ msgstr "Libri archiviati"
 msgid "Show archived books"
 msgstr "Mostra l'opzione per la selezione dei libri archiviati"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr "Elenco libri"
 
@@ -1061,190 +1074,185 @@ msgstr "Nuovo aggiornamento disponibile. Clicca sul pulsante sottostante per agg
 msgid "No release information available"
 msgstr "Non sono disponibili informazioni sulla versione"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Scopri (libri casuali)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "I libri più richiesti"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr "I libri scaricati da %(user)s"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Errore durante l'apertura del libro selezionato. Il file non esiste o il file non è accessibile"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Autore: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Editore: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Serie: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Valutazione: %(rating)s stelle"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Formato del file: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Categoria: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Lingua: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "La colonna personale no.%(column)d non esiste nel database di Calibre"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Ricerca avanzata"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Cerca"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Downloads"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Elenco delle valutazioni"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Elenco dei formati"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Compito"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Pubblicato dopo il "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Pubblicato prima del "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Valutazione <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Valutazione >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr "Stato di lettura = %(status)s"
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Libro accodato con successo per essere spedito a %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Oops! Si è verificato un errore durante l'invio di questo libro: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Per favore aggiorna il tuo profilo con un indirizzo e-mail Kindle a cui inviare i libri."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "Il server e-mail non è configurato, per favore contatta l'amministratore"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "registra"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Il tuo e-mail non è autorizzato alla registrazione"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Un messaggio di conferma è stato inviato al tuo recapito e-mail."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Non posso attivare l'autenticazione LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Fallback login come: '%(nickname)s', il server LDAP non è raggiungibile o l'utente è sconosciuto"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Non posso accedere: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Nome utente o password errati"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Una nuova password è stata inviata al tuo recapito e-mail"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Per favore digita un nome di utente valido per resettare la password"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Ora sei connesso come '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Profilo di %(name)s"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profilo aggiornato"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Ho trovato un account creato in precedenza con questa e-mail."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Leggi un libro"
 
@@ -1501,7 +1509,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1599,13 +1607,13 @@ msgstr "Converti libro"
 msgid "Book Title"
 msgstr "Titolo del libro"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Autore"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Descrizione"
 
@@ -1613,15 +1621,15 @@ msgstr "Descrizione"
 msgid "Identifiers"
 msgstr "Identificatori"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Tipo di identificatore"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Valore dell'identificatore"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Rimuovi"
@@ -1654,8 +1662,8 @@ msgstr "Carica la copertina dal disco locale"
 msgid "Published Date"
 msgstr "Data di pubblicazione"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Editore"
@@ -1675,56 +1683,56 @@ msgstr "Sì"
 msgid "No"
 msgstr "No"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Carica formato"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Visualizza il libro dopo la modifica"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Ottieni metadati"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Salva"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Parola chiave"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " ricerca parola chiave "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Fai clic sulla copertina per caricare i metadati nel modulo"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Caricamento in corso..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Chiudi"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Fonte"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Errore nella ricerca!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Nessun risultato! Prova con un altro criterio di ricerca."
 
@@ -2249,45 +2257,45 @@ msgstr "di"
 msgid "Published"
 msgstr "Pubblicato"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Marca come non letto"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Marca come letto"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "da leggere"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Ripristina dall'archivio"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Aggiungi all'archivio"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Archiviato"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Descrizione:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Aggiungi allo scaffale"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Pubblico)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Modifica metadati"
 
@@ -2831,6 +2839,14 @@ msgstr "Valutazione superiore a"
 msgid "Rating Below"
 msgstr "Valutazione inferiore a"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Cancella questo scaffale"
diff --git a/cps/translations/ja/LC_MESSAGES/messages.mo b/cps/translations/ja/LC_MESSAGES/messages.mo
index 63f394e9..71914d1e 100644
Binary files a/cps/translations/ja/LC_MESSAGES/messages.mo and b/cps/translations/ja/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/ja/LC_MESSAGES/messages.po b/cps/translations/ja/LC_MESSAGES/messages.po
index a5fc9009..f3ff76c3 100644
--- a/cps/translations/ja/LC_MESSAGES/messages.po
+++ b/cps/translations/ja/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2018-02-07 02:20-0500\n"
 "Last-Translator: white <space_white@yahoo.com>\n"
 "Language: ja\n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -46,9 +46,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "不明"
@@ -69,7 +69,7 @@ msgstr ""
 msgid "all"
 msgstr ""
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -86,7 +86,7 @@ msgstr ""
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -94,7 +94,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -130,301 +130,309 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Calibre-Web の設定を更新しました"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr ""
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "基本設定"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "全ての項目を入力してください"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "このメールは有効なドメインからのものではありません"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "新規ユーザ追加"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "ユーザ '%(user)s' を作成しました"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "このメールアドレスかニックネームで登録されたアカウントが見つかりました"
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "ユーザ '%(nick)s' を削除しました"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr ""
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "%(nick)s を編集"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "ユーザ '%(nick)s' を更新しました"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "不明なエラーが発生しました。"
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "SMTP設定を変更"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "テストメールを %(res)s に送信中にエラーが発生しました"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr ""
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "メールサーバの設定を更新しました"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "%(user)s 用のパスワードをリセット"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "不明なエラーが発生しました。あとで再試行してください。"
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "初めにSMTPメールの設定をしてください"
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr ""
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "更新データを要求中"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "更新データをダウンロード中"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "更新データを展開中"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "ファイルを置換中"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "データベースの接続を切断完了"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "サーバ停止中"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "アップデート完了、OKを押してページをリロードしてください"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "アップデート失敗:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTPエラー"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "接続エラー"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "接続を確立中にタイムアウトしました"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "エラー発生"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -436,6 +444,11 @@ msgstr ""
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -444,8 +457,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "電子書籍を開けません。ファイルが存在しないかアクセスできません"
 
@@ -458,76 +471,76 @@ msgstr "メタデータを編集"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s は有効な言語ではありません"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "ファイル拡張子 '%(ext)s' をこのサーバにアップロードすることは許可されていません"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "アップロードするファイルには拡張子が必要です"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "%(path)s の作成に失敗しました (Permission denied)。"
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "%(file)s を保存できません。"
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "ファイル形式 %(ext)s が %(book)s に追加されました"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "メタデータを更新しました"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "本の編集でエラーが発生しました。詳細はログファイルを確認してください"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr ""
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr ""
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr ""
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "変換元の形式または変換後の形式が指定されていません"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "本の %(book_format)s への変換がキューに追加されました"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "この本の変換中にエラーが発生しました: %(res)s"
@@ -713,7 +726,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr ""
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "%(nickname)s としてログイン中"
@@ -783,7 +796,7 @@ msgstr ""
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "ログイン"
 
@@ -799,7 +812,7 @@ msgstr "トークンが無効です"
 msgid "Success! Please return to your device"
 msgstr "成功です！端末に戻ってください"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr ""
 
@@ -824,7 +837,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr ""
 
@@ -833,7 +846,7 @@ msgid "Show Top Rated Books"
 msgstr ""
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "読んだ本"
 
@@ -842,7 +855,7 @@ msgid "Show read and unread"
 msgstr "既読の本と未読の本を表示"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "未読の本"
 
@@ -860,7 +873,7 @@ msgid "Show random books"
 msgstr "ランダムで本を表示"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "カテゴリ"
 
@@ -870,7 +883,7 @@ msgstr "カテゴリ選択を表示"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "シリーズ"
 
@@ -888,7 +901,7 @@ msgid "Show author selection"
 msgstr "著者選択を表示"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "出版社"
 
@@ -898,7 +911,7 @@ msgstr "出版社選択を表示"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "言語"
 
@@ -922,7 +935,7 @@ msgstr ""
 msgid "Show file formats selection"
 msgstr ""
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -930,7 +943,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1062,190 +1075,185 @@ msgstr "アップデートが利用可能です。下のボタンをクリック
 msgid "No release information available"
 msgstr "リリース情報がありません"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "本を見つける (ランダムで表示)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr ""
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr ""
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr ""
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "出版社: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "シリーズ: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr ""
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr ""
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "カテゴリ: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "言語: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "詳細検索"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "検索"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr ""
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr ""
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr ""
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "タスク"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "これ以降に出版 "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "これ以前に出版 "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "評価 <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "評価 >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "本の %(kindlemail)s への送信がキューに追加されました"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "%(res)s を送信中にエラーが発生しました"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "初めにKindleのメールアドレスを設定してください"
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr ""
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "登録"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "このメールアドレスは登録が許可されていません"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "確認メールがこのメールアドレスに送信されました。"
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr ""
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "ユーザ名またはパスワードが違います"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr ""
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr ""
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr ""
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s のプロフィール"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "プロフィールを更新しました"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "このメールアドレスで登録されたアカウントがあります"
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "本を読む"
 
@@ -1502,7 +1510,7 @@ msgid "OK"
 msgstr ""
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1600,13 +1608,13 @@ msgstr "本を変換"
 msgid "Book Title"
 msgstr "本のタイトル"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "著者"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "詳細"
 
@@ -1614,15 +1622,15 @@ msgstr "詳細"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1655,8 +1663,8 @@ msgstr ""
 msgid "Published Date"
 msgstr ""
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "出版社"
@@ -1676,56 +1684,56 @@ msgstr "はい"
 msgid "No"
 msgstr "いいえ"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr ""
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr ""
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "キーワード"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr "キーワードを検索"
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "カバー画像をクリックしてメタデータをフォームに読み込んでください"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "読み込み中..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "閉じる"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "ソース"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "検索エラー"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "検索結果が見つかりません。別のキーワードで検索してみてください。"
 
@@ -2250,45 +2258,45 @@ msgstr "の"
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "未読に設定"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "既読に設定"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "読んだ"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "詳細:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "本棚に追加"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr ""
 
@@ -2832,6 +2840,14 @@ msgstr ""
 msgid "Rating Below"
 msgstr ""
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "この本棚を削除"
diff --git a/cps/translations/km/LC_MESSAGES/messages.mo b/cps/translations/km/LC_MESSAGES/messages.mo
index 66baa640..71ef7bfd 100644
Binary files a/cps/translations/km/LC_MESSAGES/messages.mo and b/cps/translations/km/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/km/LC_MESSAGES/messages.po b/cps/translations/km/LC_MESSAGES/messages.po
index f41271e2..9f068f59 100644
--- a/cps/translations/km/LC_MESSAGES/messages.po
+++ b/cps/translations/km/LC_MESSAGES/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2018-08-27 17:06+0700\n"
 "Last-Translator: \n"
 "Language: km_KH\n"
@@ -17,7 +17,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -47,9 +47,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "មិនដឹង"
@@ -71,7 +71,7 @@ msgstr "អ្នកប្រើប្រាស់រដ្ឋបាល"
 msgid "all"
 msgstr ""
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -88,7 +88,7 @@ msgstr "បង្ហាញទាំងអស់"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -96,7 +96,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -132,302 +132,310 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr ""
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "តើអ្នកពិតជាចង់លុបធ្នើនេះមែនទេ?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "តើអ្នកពិតជាចង់លុបធ្នើនេះមែនទេ?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "តើអ្នកពិតជាចង់លុបធ្នើនេះមែនទេ?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "ការកំណត់សាមញ្ញ"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "សូមបំពេញចន្លោះទាំងអស់!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr ""
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "បន្ថែមអ្នកប្រើប្រាស់ថ្មី"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "បានបង្កើតអ្នកប្រើប្រាស់ ‘%(user)s’"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 msgid "Found an existing account for this e-mail address or name."
 msgstr ""
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "អ្នកប្រើប្រាស់ ‘%(nick)s’ ត្រូវបានលុប"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr ""
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "កែប្រែអ្នកប្រើប្រាស់ %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "អ្នកប្រើប្រាស់ ‘%(nick)s’ ត្រូវបានកែប្រែ"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "បញ្ហាដែលមិនដឹងបានកើតឡើង។"
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "ប្តូរការកំណត់ SMTP"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr ""
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr ""
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr ""
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr ""
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr ""
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "សូមកំណត់អ៊ីមែល SMTP ជាមុនសិន"
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr ""
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "កំពុងស្នើសុំឯកសារបច្ចុប្បន្នភាព"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "កំពុងទាញយកឯកសារបច្ចុប្បន្នភាព"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "កំពុងពន្លាឯកសារបច្ចុប្បន្នភាព"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr ""
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "ទំនាក់ទំនងទៅមូលដ្ឋានទិន្នន័យត្រូវបានផ្តាច់"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr ""
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "ការធ្វើបច្ចុប្បន្នភាពបានបញ្ចប់ សូមចុច okay រួចបើកទំព័រជាថ្មី"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr ""
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr ""
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr ""
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr ""
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr ""
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -439,6 +447,11 @@ msgstr ""
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -447,8 +460,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "មានបញ្ហាពេលបើកឯកសារ eBook ។ ពុំមានឯកសារ ឬឯកសារនេះមិនអាចបើកបាន"
 
@@ -461,76 +474,76 @@ msgstr "កែប្រែទិន្នន័យមេតា"
 msgid "%(langname)s is not a valid language"
 msgstr ""
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "ឯកសារប្រភេទ '%(ext)s' មិនត្រូវបានអនុញ្ញាតឲអាប់ឡូដទៅម៉ាស៊ីន server នេះទេ"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "ឯកសារដែលត្រូវអាប់ឡូដត្រូវមានកន្ទុយឯកសារ"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "មិនអាចបង្កើតទីតាំង %(path)s (ពុំមានសិទ្ធិ)។"
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "មិនអាចរក្សាទុកឯកសារ %(file)s ។"
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "ឯកសារទម្រង់ %(ext)s ត្រូវបានបន្ថែមទៅ %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr ""
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "មានបញ្ហាពេលកែប្រែសៀវភៅ សូមពិនិត្យមើល logfile សម្រាប់ព័ត៌មានបន្ថែម"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr ""
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr ""
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr ""
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr ""
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr ""
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr ""
@@ -715,7 +728,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr ""
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "ឥឡូវអ្នកបានចូលដោយមានឈ្មោះថា៖ ‘%(nickname)s’"
@@ -785,7 +798,7 @@ msgstr ""
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "ចូលប្រើ"
 
@@ -801,7 +814,7 @@ msgstr "វត្ថុតាងហួសពេលកំណត់"
 msgid "Success! Please return to your device"
 msgstr "ជោគជ័យ! សូមវិលមកឧបករណ៍អ្នកវិញ"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr ""
 
@@ -826,7 +839,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "សៀវភៅដែលមានការវាយតម្លៃល្អជាងគេ"
 
@@ -835,7 +848,7 @@ msgid "Show Top Rated Books"
 msgstr "បង្ហាញសៀវភៅដែលមានការវាយតម្លៃល្អជាងគេ"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "សៀវភៅដែលបានអានរួច"
 
@@ -844,7 +857,7 @@ msgid "Show read and unread"
 msgstr "បង្ហាញអានរួច និងមិនទាន់អាន"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "សៀវភៅដែលមិនទាន់បានអាន"
 
@@ -862,7 +875,7 @@ msgid "Show random books"
 msgstr "បង្ហាញសៀវភៅចៃដន្យ"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "ប្រភេទនានា"
 
@@ -872,7 +885,7 @@ msgstr "បង្ហាញជម្រើសប្រភេទ"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "ស៊េរី"
 
@@ -890,7 +903,7 @@ msgid "Show author selection"
 msgstr "បង្ហាញជម្រើសអ្នកនិពន្ធ"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr ""
 
@@ -900,7 +913,7 @@ msgstr ""
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "ភាសានានា"
 
@@ -924,7 +937,7 @@ msgstr ""
 msgid "Show file formats selection"
 msgstr ""
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -932,7 +945,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1064,190 +1077,185 @@ msgstr ""
 msgid "No release information available"
 msgstr ""
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "ស្រាវជ្រាវ (សៀវភៅចៃដន្យ)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "សៀវភៅដែលត្រូវបានទាញយកច្រើនជាងគេ"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr ""
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr ""
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr ""
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "ស៊េរី៖ %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr ""
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr ""
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "ប្រភេទ៖ %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "ភាសា៖ %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "ស្វែងរកកម្រិតខ្ពស់"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "ស្វែងរក"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "ឯកសារ DLS"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr ""
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr ""
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "កិច្ចការនានា"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "បានបោះពុម្ភក្រោយ  "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "បានបោះពុម្ភមុន  "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "ការវាយតម្លៃ <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "ការវាយតម្លៃ >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "សៀវភៅបានចូលជួរសម្រាប់ផ្ញើទៅ %(kindlemail)s ដោយជោគជ័យ"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "មានបញ្ហានៅពេលផ្ញើសៀវភៅនេះ៖ %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr ""
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr ""
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "ចុះឈ្មោះ"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr ""
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr ""
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr ""
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "ខុសឈ្មោះអ្នកប្រើប្រាស់ ឬលេខសម្ងាត់"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr ""
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr ""
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr ""
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "ព័ត៌មានសង្ខេបរបស់ %(name)s"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "ព័ត៌មានសង្ខេបបានកែប្រែ"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr ""
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "អានសៀវភៅ"
 
@@ -1504,7 +1512,7 @@ msgid "OK"
 msgstr "បាទ/ចាស"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1602,13 +1610,13 @@ msgstr ""
 msgid "Book Title"
 msgstr "ចំណងជើងសៀវភៅ"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "អ្នកនិពន្ធ"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "ពិពណ៌នា"
 
@@ -1616,15 +1624,15 @@ msgstr "ពិពណ៌នា"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1657,8 +1665,8 @@ msgstr ""
 msgid "Published Date"
 msgstr "ថ្ងៃបោះពុម្ភ"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "អ្នកបោះពុម្ភ"
@@ -1678,56 +1686,56 @@ msgstr "បាទ/ចាស"
 msgid "No"
 msgstr "ទេ"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "ទម្រង់អាប់ឡូដ"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "មើលសៀវភៅក្រោយពីកែប្រែ"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "មើលទិន្នន័យមេតា"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "ពាក្យគន្លឹះ"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr "ស្វែងរកពាក្យគន្លឹះ"
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "ចុចលើគម្របដើម្បីបញ្ចូលទិន្នន័យមេតាទៅក្នុង form"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "កំពុងដំណើរការ..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "បិទ"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "ប្រភព"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "ការស្វែងរកមានកំហុស!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr ""
 
@@ -2252,45 +2260,45 @@ msgstr "នៃ"
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr ""
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "អាន"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "ពិពណ៌នា"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "បន្ថែមទៅធ្នើ"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "កែប្រែទិន្នន័យមេតា"
 
@@ -2834,6 +2842,14 @@ msgstr "ការវាយតម្លៃលើសពី"
 msgid "Rating Below"
 msgstr "ការវាយតម្លៃតិចជាង"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "លុបធ្នើនេះ"
diff --git a/cps/translations/nl/LC_MESSAGES/messages.mo b/cps/translations/nl/LC_MESSAGES/messages.mo
index d97055f5..59f8a7df 100644
Binary files a/cps/translations/nl/LC_MESSAGES/messages.mo and b/cps/translations/nl/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/nl/LC_MESSAGES/messages.po b/cps/translations/nl/LC_MESSAGES/messages.po
index 86f5faa0..49326d39 100644
--- a/cps/translations/nl/LC_MESSAGES/messages.po
+++ b/cps/translations/nl/LC_MESSAGES/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Calibre-Web (GPLV3)\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-12-12 08:20+0100\n"
 "Last-Translator: Marcel Maas <marcel.maas@outlook.com>\n"
 "Language: nl\n"
@@ -17,7 +17,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -47,9 +47,9 @@ msgstr "Opnieuw verbinden gelukt"
 msgid "Unknown command"
 msgstr "Onbekende opdracht"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Onbekend"
@@ -72,7 +72,7 @@ msgstr "Systeembeheerder"
 msgid "all"
 msgstr "Alles"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Gebruiker niet gevonden"
 
@@ -89,7 +89,7 @@ msgstr "Alle talen"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -97,7 +97,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Kan systeembeheerder rol niet verwijderen van de laatste systeembeheerder"
 
@@ -133,303 +133,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Calibre-Web-configuratie bijgewerkt"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Wil je werkelijk je Kobo Token verwijderen?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Weet je zeker dat je deze boekenplank wilt verwijderen?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Weet je zeker dat je deze boekenplank wilt verwijderen?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Weet je zeker dat je deze boekenplank wilt verwijderen?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Weigeren"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Toestaan"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json is niet geconfigureerd voor webapplicatie"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "De locatie van het logbestand is onjuist, voer een geldige locatie in"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "De locatie vam het toegangslog is onjuist, voer een geldige locatie in"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "SSL-sleutellocatie is niet geldig, voer een geldige locatie in"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "SSL-certificaatlocatie is niet geldig, voer een geldige locatie in"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "Instellingen niet opgeslagen"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "Database niet gevonden, voer de juiste locatie in"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "Kan niet schrijven naar database"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Basis configuratie"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Vul alle velden in!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "Het e-mailadres bevat geen geldige domeinnaam"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Gebruiker toevoegen"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Gebruiker '%(user)s' aangemaakt"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Bestaand account met dit e-mailadres of deze gebruikersnaam aangetroffen."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Gebruiker '%(nick)s' verwijderd"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Kan laatste systeembeheerder niet verwijderen"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Gebruiker '%(nick)s' bewerken"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Gebruiker '%(nick)s' bijgewerkt"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Er is een onbekende fout opgetreden."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "SMTP-instellingen bewerken"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Fout opgetreden bij het versturen van de test-e-mail: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Gelieve eerst je e-mail adres configureren..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "E-mailserver-instellingen bijgewerkt"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Wachtwoord voor gebruiker %(user)s is hersteld"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Onbekende fout opgetreden. Probeer het later nog eens."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Stel eerst SMTP-mail in..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Logbestand lezer"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Update opvragen"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Update downloaden"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Update uitpakken"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Update toepassen"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Databaseverbindingen zijn gesloten"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Bezig met stoppen van Calibre-Web"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Update voltooid, klik op 'Oké' en vernieuw de pagina"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Update mislukt:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP-fout"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Verbindingsfout"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Time-out tijdens maken van verbinding"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Algemene fout"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Geüpload bestand kon niet opgeslagen worden in de tijdelijke map"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Fout: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Fout: No user returned in response of LDAP server"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -441,6 +449,11 @@ msgstr "niet geconfigureerd"
 msgid "Execution permissions missing"
 msgstr "Kan programma niet uitvoeren"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Het boekformaat is verwijderd"
@@ -449,8 +462,8 @@ msgstr "Het boekformaat is verwijderd"
 msgid "Book Successfully Deleted"
 msgstr "Het boek is verwijderd"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Kan e-boek niet openen: het bestand bestaat niet of is ontoegankelijk"
 
@@ -463,76 +476,76 @@ msgstr "metagegevens bewerken"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s is geen geldige taal"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "De bestandsextensie '%(ext)s' is niet toegestaan op deze server"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Het te uploaden bestand moet voorzien zijn van een extensie"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Kan de locatie '%(path)s' niet aanmaken (niet gemachtigd)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Kan %(file)s niet opslaan."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Database fout: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Bestandsformaat %(ext)s toegevoegd aan %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr "Identificatoren zijn niet hoofdlettergevoelig, overschrijf huidige identificatoren"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "De metagegevens zijn bijgewerkt"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Kan het boek niet bewerken, controleer het logbestand"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Geüpload boek staat mogelijk al in de bibliotheek, controleer alvorens door te gaan: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Bestand %(filename)s kon niet opgeslagen worden in de tijdelijke map"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Omslag %(file)s niet verplaatst: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Bestand %(file)s geüpload"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Bron- of doelformaat ontbreekt voor conversie"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Het boek is in de wachtrij geplaatst voor conversie naar %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Er is een fout opgetreden bij het converteren van dit boek: %(res)s"
@@ -718,7 +731,7 @@ msgstr "Kobo Instellen"
 msgid "Register with %(provider)s"
 msgstr "Aanmelden bij %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "je bent ingelogd als: '%(nickname)s'"
@@ -788,7 +801,7 @@ msgstr "Alles"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "inloggen"
 
@@ -804,7 +817,7 @@ msgstr "Toegangssleutel is verlopen"
 msgid "Success! Please return to your device"
 msgstr "Gelukt! Ga terug naar je apparaat"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Boeken"
 
@@ -829,7 +842,7 @@ msgstr "Gedownloade boeken"
 msgid "Show Downloaded Books"
 msgstr "Gedownloade boeken tonen"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Best beoordeelde boeken"
 
@@ -838,7 +851,7 @@ msgid "Show Top Rated Books"
 msgstr "Best beoordeelde boeken tonen"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Gelezen boeken"
 
@@ -847,7 +860,7 @@ msgid "Show read and unread"
 msgstr "Gelezen/Ongelezen boeken tonen"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Ongelezen boeken"
 
@@ -865,7 +878,7 @@ msgid "Show random books"
 msgstr "Willekeurige boeken tonen"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Categorieën"
 
@@ -875,7 +888,7 @@ msgstr "Categoriekeuze tonen"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Boekenreeksen"
 
@@ -893,7 +906,7 @@ msgid "Show author selection"
 msgstr "Auteurkeuze tonen"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Uitgevers"
 
@@ -903,7 +916,7 @@ msgstr "Uitgeverskeuze tonen"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Talen"
 
@@ -927,7 +940,7 @@ msgstr "Bestandsformaten"
 msgid "Show file formats selection"
 msgstr "Bestandsformaten tonen"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Gearchiveerde boeken"
 
@@ -935,7 +948,7 @@ msgstr "Gearchiveerde boeken"
 msgid "Show archived books"
 msgstr "Gearchiveerde boeken tonen"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr "Boekenlijst"
 
@@ -1067,190 +1080,185 @@ msgstr "Er is een update beschikbaar. Klik op de knop hieronder om te updaten na
 msgid "No release information available"
 msgstr "Geen update-informatie beschikbaar"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Verkennen (willekeurige boeken)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Populaire boeken (meest gedownload)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr "Gedownloade boeken door %(user)s"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Oeps! Geselecteerd boek is niet beschikbaar. Bestand bestaat niet of is niet toegankelijk"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Auteur: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Uitgever: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Reeks: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Beoordeling: %(rating)s sterren"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Bestandsformaat: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Categorie: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Taal: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Geavanceerd zoeken"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Zoeken"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Downloads"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Beoordelingen"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Alle bestandsformaten"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Taken"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Gepubliceerd na "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Gepubliceerd vóór "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Beoordeling <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Beoordeling >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Het boek is in de wachtrij geplaatst om te worden verstuurd aan %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Fout opgetreden bij het versturen van dit boek: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Stel je kindle-e-mailadres in..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "E-mailserver is niet geconfigureerd, neem contact op met de beheerder!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "registreren"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Dit e-mailadres mag niet worden gebruikt voor registratie"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Er is een bevestigings-e-mail verstuurd naar je e-mailadres."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Kan de LDAP authenticatie niet activeren"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Inloggen mislukt: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Verkeerde gebruikersnaam of wachtwoord"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Een nieuw wachtwoord is verzonden naar je e-mailadres"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Geef een geldige gebruikersnaam op om je wachtwoord te herstellen"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Je bent ingelogd als: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s's profiel"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profiel bijgewerkt"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Bestaand account met dit e-mailadres aangetroffen."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Lees een boek"
 
@@ -1507,7 +1515,7 @@ msgid "OK"
 msgstr "Oké"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1605,13 +1613,13 @@ msgstr "Boek converteren"
 msgid "Book Title"
 msgstr "Boektitel"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Auteur"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Omschrijving"
 
@@ -1619,15 +1627,15 @@ msgstr "Omschrijving"
 msgid "Identifiers"
 msgstr "Identificatoren"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Identificatie type"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Identificatie waarde"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Verwijderen"
@@ -1660,8 +1668,8 @@ msgstr "Omslag uploaden vanaf de harde schijf"
 msgid "Published Date"
 msgstr "Publicatiedatum"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Uitgever"
@@ -1681,56 +1689,56 @@ msgstr "Ja"
 msgid "No"
 msgstr "Nee"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Uploadformaat"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Boek inkijken na bewerking"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Metagegevens ophalen"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Opslaan"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Trefwoord"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Trefwoord zoeken "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Klik op de omslag om de metagegevens in het formulier te laden"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Bezig met laden..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Sluiten"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Bron"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Zoekfout!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Geen resultaten gevonden! Gebruik een ander trefwoord."
 
@@ -2255,45 +2263,45 @@ msgstr "van"
 msgid "Published"
 msgstr "Gepubliceerd"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Markeren als ongelezen"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Markeren als gelezen"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Gelezen"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Terughalen uit archief"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Toevoegen aan archief"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Gearchiveerd"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Beschrijving:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Toevoegen aan boekenplank"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Openbaar)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Metagegevens bewerken"
 
@@ -2837,6 +2845,14 @@ msgstr "Met beoordeling hoger dan"
 msgid "Rating Below"
 msgstr "Met beoordeling lager dan"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Boekenplank verwijderen"
diff --git a/cps/translations/pl/LC_MESSAGES/messages.mo b/cps/translations/pl/LC_MESSAGES/messages.mo
index 2d16b7b7..9822ab1d 100644
Binary files a/cps/translations/pl/LC_MESSAGES/messages.mo and b/cps/translations/pl/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/pl/LC_MESSAGES/messages.po b/cps/translations/pl/LC_MESSAGES/messages.po
index f0ea50b5..6a9a98ae 100644
--- a/cps/translations/pl/LC_MESSAGES/messages.po
+++ b/cps/translations/pl/LC_MESSAGES/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Calibre Web - polski (POT: 2019-08-06 18:35)\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-08-30 21:05+0200\n"
 "Last-Translator: Jerzy Piątek <jerzy.piatek@gmail.com>\n"
 "Language: pl\n"
@@ -17,7 +17,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -48,9 +48,9 @@ msgid "Unknown command"
 msgstr "Nieznane polecenie"
 
 # ???
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Nieznany"
@@ -74,7 +74,7 @@ msgstr "Użytkownik z uprawnieniami administratora"
 msgid "all"
 msgstr "Wszystko"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Nie znaleziono użytkownika"
 
@@ -91,7 +91,7 @@ msgstr "Pokaż wszystkie"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -99,7 +99,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Nie można odebrać praw administratora. Brak na serwerze innego konta z prawami administratora"
 
@@ -135,305 +135,313 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Konfiguracja Calibre-Web została zaktualizowana"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Czy na pewno chcesz usunąć Token Kobo?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Czy na pewno chcesz usunąć półkę?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Czy na pewno chcesz usunąć półkę?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Czy na pewno chcesz usunąć półkę?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Zabroń"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Zezwalaj"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json nie został skonfigurowany dla aplikacji webowej"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Lokalizacja pliku dziennika jest nieprawidłowa, wprowadź poprawną ścieżkę"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Lokalizacja pliku dziennika dostępu jest nieprawidłowa, wprowadź poprawną ścieżkę"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Wprowadź dostawcę LDAP, port, nazwę wyróżniającą i identyfikator obiektu użytkownika"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "Filtr obiektów grupy LDAP musi mieć jeden identyfikator formatu \"% s\""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "Filtr obiektów grupy LDAP ma niedopasowany nawias"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "Filtr obiektów użytkownika LDAP musi mieć jeden identyfikator formatu \"% s\""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "Filtr obiektów użytkownika LDAP ma niedopasowany nawias"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "Lokalizacja pliku klucza jest nieprawidłowa, wprowadź poprawną ścieżkę"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "Lokalizacja pliku certyfikatu jest nieprawidłowa, wprowadź poprawną ścieżkę"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "Baza danych ustawień nie jest zapisywalna"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "Lokalizacja bazy danych jest nieprawidłowa, wprowadź poprawną ścieżkę"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "Baza danych nie jest zapisywalna"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Konfiguracja podstawowa"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Proszę wypełnić wszystkie pola!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "E-mail nie pochodzi z prawidłowej domeny"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Dodaj nowego użytkownika"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Użytkownik '%(user)s' został utworzony"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Znaleziono istniejące konto dla tego adresu e-mail lub pseudonimu."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Użytkownik '%(nick)s' został usunięty"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Nie można usunąć użytkownika. Brak na serwerze innego konta z prawami administratora"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Edytuj użytkownika %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Użytkownik '%(nick)s' został zaktualizowany"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Wystąpił nieznany błąd."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Zmień ustawienia SMTP"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Wystąpił błąd podczas wysyłania e-maila testowego: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Najpierw skonfiguruj swój adres e-mail..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Zaktualizowano ustawienia serwera poczty e-mail"
 
 # ???
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Zrestartowano hasło użytkownika %(user)s"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Wystąpił nieznany błąd. Spróbuj ponownie później."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Proszę najpierw skonfigurować ustawienia SMTP poczty e-mail..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Przeglądanie dziennika"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Żądanie o pakiet aktualizacji"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Pobieranie pakietu aktualizacji"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Rozpakowywanie pakietu aktualizacji"
 
 # ???
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Zastępowanie plików"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Połączenia z bazą danych zostały zakończone"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Zatrzymywanie serwera"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Aktualizacja zakończona, proszę nacisnąć OK i odświeżyć stronę"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Aktualizacja nieudana:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "Błąd HTTP"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Błąd połączenia"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Przekroczono limit czasu podczas nawiązywania połączenia"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Błąd ogólny"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Plik aktualizacji nie mógł zostać zapisany w katalogu tymczasowym"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Błąd przy tworzeniu przynajmniej jednego użytkownika LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Błąd: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Błąd. LDAP nie zwrócił żadnego użytkownika"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "Przynajmniej jeden użytkownik LDAP nie został znaleziony w bazie danych"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -445,6 +453,11 @@ msgstr "nie skonfigurowane"
 msgid "Execution permissions missing"
 msgstr "Brak uprawnienia do wykonywania pliku"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "Niestandardowa kolumna No.%(column)d nie istnieje w bazie calibre"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Plik książki w wybranym formacie został usunięty"
@@ -453,8 +466,8 @@ msgstr "Plik książki w wybranym formacie został usunięty"
 msgid "Book Successfully Deleted"
 msgstr "Książka została usunięta"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Błąd podczas otwierania e-booka. Plik nie istnieje lub jest niedostępny"
 
@@ -467,76 +480,76 @@ msgstr "edytuj metadane"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s nie jest prawidłowym językiem"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Rozszerzenie pliku '%(ext)s' nie jest dozwolone do wysłania na ten serwer"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Plik do wysłania musi mieć rozszerzenie"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Nie udało się utworzyć łącza %(path)s (Odmowa dostępu)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Nie można zapisać pliku %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Błąd bazy danych: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Format pliku %(ext)s dodany do %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadane zostały pomyślnie zaktualizowane"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Błąd podczas edycji książki, sprawdź plik dziennika, aby uzyskać szczegółowe informacje"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Wysłana książka prawdopodobnie istnieje w bibliotece, rozważ zmianę przed przesłaniem nowej: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Nie można zapisać pliku %(filename)s w katalogu tymczasowym"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Nie udało się przenieść pliku okładki %(file)s:%(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Wysłano plik %(file)s"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Brak formatu źródłowego lub docelowego do konwersji"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Książka została pomyślnie umieszczona w zadaniach do konwersji %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Podczas konwersji książki wystąpił błąd: %(res)s"
@@ -725,7 +738,7 @@ msgstr "Konfiguracja Kobo"
 msgid "Register with %(provider)s"
 msgstr "Zarejestruj się %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "zalogowałeś się jako: '%(nickname)s'"
@@ -796,7 +809,7 @@ msgstr "Wszystko"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "logowanie"
 
@@ -812,7 +825,7 @@ msgstr "Token wygasł"
 msgid "Success! Please return to your device"
 msgstr "Powodzenie! Wróć do swojego urządzenia"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Książki"
 
@@ -837,7 +850,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Najwyżej ocenione"
 
@@ -846,7 +859,7 @@ msgid "Show Top Rated Books"
 msgstr "Pokaż menu najwyżej ocenionych książek"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Przeczytane"
 
@@ -855,7 +868,7 @@ msgid "Show read and unread"
 msgstr "Pokaż menu przeczytane i nieprzeczytane"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Nieprzeczytane"
 
@@ -873,7 +886,7 @@ msgid "Show random books"
 msgstr "Pokaż menu losowych książek"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Kategorie"
 
@@ -883,7 +896,7 @@ msgstr "Pokaż menu wyboru kategorii"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Cykle"
 
@@ -901,7 +914,7 @@ msgid "Show author selection"
 msgstr "Pokaż menu wyboru autora"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Wydawcy"
 
@@ -911,7 +924,7 @@ msgstr "Pokaż menu wyboru wydawcy"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Języki"
 
@@ -935,7 +948,7 @@ msgstr "Formaty plików"
 msgid "Show file formats selection"
 msgstr "Pokaż menu formatu plików"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Zarchiwizowane książki"
 
@@ -943,7 +956,7 @@ msgstr "Zarchiwizowane książki"
 msgid "Show archived books"
 msgstr "Pokaż zarchiwizowane książki"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1075,190 +1088,185 @@ msgstr "Dostępna jest nowa aktualizacja. Kliknij przycisk poniżej, aby zaktual
 msgid "No release information available"
 msgstr "Brak dostępnych informacji o wersji"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Odkrywaj (losowe książki)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Najpopularniejsze książki (najczęściej pobierane)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Błąd otwierania e-booka. Plik nie istnieje lub jest niedostępny"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Autor: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Wydawca: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Cykl: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Ocena: %(rating)s gwiazdek"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Format pliku: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Kategoria: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Język: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "Niestandardowa kolumna No.%(column)d nie istnieje w bazie calibre"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Wyszukiwanie"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Szukaj"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "DLS"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Lista z ocenami"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Lista formatów"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Zadania"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Opublikowane po "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Opublikowane przed "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Ocena <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Ocena >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Książka została umieszczona w kolejce do wysłania do %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Wystąpił błąd podczas wysyłania tej książki: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Najpierw skonfiguruj adres e-mail Kindle..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "Serwer e-mail nie jest skonfigurowany, skontaktuj się z administratorem!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "rejestracja"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Twój e-mail nie może się zarejestrować"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Wiadomość e-mail z potwierdzeniem została wysłana na Twoje konto e-mail."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Nie można aktywować uwierzytelniania LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Nie można zalogować: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Błędna nazwa użytkownika lub hasło"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Nowe hasło zostało wysłane na Twój adres e-mail"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Wprowadź prawidłową nazwę użytkownika, aby zresetować hasło"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Jesteś teraz zalogowany jako: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Profil użytkownika %(name)s"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Zaktualizowano profil"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Znaleziono istniejące konto dla tego adresu e-mail."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Czytaj książkę"
 
@@ -1518,7 +1526,7 @@ msgid "OK"
 msgstr "OK"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1617,13 +1625,13 @@ msgstr "Konwertuj książkę"
 msgid "Book Title"
 msgstr "Tytuł książki"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Autor"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Opis"
 
@@ -1631,15 +1639,15 @@ msgstr "Opis"
 msgid "Identifiers"
 msgstr "Identyfikatory"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Rodzaj identyfikatora"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Wartość identyfikatora"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Usuń"
@@ -1672,8 +1680,8 @@ msgstr "Wyślij okładkę z dysku lokalnego"
 msgid "Published Date"
 msgstr "Data publikacji"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Wydawca"
@@ -1693,56 +1701,56 @@ msgstr "Tak"
 msgid "No"
 msgstr "Nie"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Wyślij format"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Po zapisaniu wyświetl szczegóły książki"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Uzyskaj metadane"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Zapisz"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Słowo kluczowe"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Szukaj słowa kluczowego "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Kliknij okładkę, aby załadować metadane do formularza"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Ładowanie..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Zamknij"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Źródło"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Błąd wyszukiwania!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Nie znaleziono! Spróbuj użyć innego słowa kluczowego."
 
@@ -2268,45 +2276,45 @@ msgstr "w cyklu"
 msgid "Published"
 msgstr "Data publikacji"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Oznacz jako nieprzeczytane"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Oznacz jako przeczytane"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Przeczytana"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Przywróć z archiwum"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Dodaj do archiwum"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Zarchiwizowane"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Opis:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Dodaj do półki"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(publiczna)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Edytuj metadane"
 
@@ -2855,6 +2863,14 @@ msgstr "Ocena większa niż"
 msgid "Rating Below"
 msgstr "Ocena mniejsza niż"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Usuń tą półkę"
diff --git a/cps/translations/pt_BR/LC_MESSAGES/messages.mo b/cps/translations/pt_BR/LC_MESSAGES/messages.mo
index 519c6e41..05019a91 100644
Binary files a/cps/translations/pt_BR/LC_MESSAGES/messages.mo and b/cps/translations/pt_BR/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/pt_BR/LC_MESSAGES/messages.po b/cps/translations/pt_BR/LC_MESSAGES/messages.po
index c4ef311b..4354b82d 100644
--- a/cps/translations/pt_BR/LC_MESSAGES/messages.po
+++ b/cps/translations/pt_BR/LC_MESSAGES/messages.po
@@ -4,7 +4,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: br\n"
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -43,9 +43,9 @@ msgstr "Reconexão bem-sucedida"
 msgid "Unknown command"
 msgstr "Comando desconhecido"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Desconhecido"
@@ -68,7 +68,7 @@ msgstr "Usuário Admin"
 msgid "all"
 msgstr "Todos"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "Usuário não encontrado"
 
@@ -86,7 +86,7 @@ msgstr "Mostrar tudo"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -94,7 +94,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "Nenhum usuário administrador restante, não pode remover a função de administrador"
 
@@ -130,303 +130,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Configuração do Calibre-Web atualizada"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Você realmente quer excluir o Kobo Token?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr "Você realmente quer excluir este domínio?"
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr "Você realmente quer excluir este usuário?"
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Tem certeza que quer apagar essa estante?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Tem certeza que quer apagar essa estante?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Tem certeza que quer apagar essa estante?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Negar"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Permita"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json não está configurado para aplicativo da web"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "A localização do arquivo de log não é válida, digite o caminho correto"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "A localização do arquivo de log de acesso não é válida, digite o caminho correto"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Digite um provedor LDAP, porta, DN e identificador de objeto do usuário"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "O filtro de objeto de grupo LDAP precisa ter um identificador de formato \"%s\""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "Filtro de objeto de grupo LDAP tem parênteses incomparáveis"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "O filtro de objeto de usuário LDAP precisa ter um identificador de formato \"%s\""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "Filtro de objeto de usuário LDAP tem parênteses incomparáveis"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr "O filtro de usuário membro do LDAP precisa ter um identificador de formato \"%s\""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr "Filtro de usuário de membro LDAP tem parênteses incomparáveis"
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr "LDAP CACertificate, Certificados ou chave de localização não é válida, Insira o caminho correto"
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "A localização do arquivo-chave não é válida, por favor insira o caminho correto"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "A localização do arquivo de certificação não é válida, digite o caminho correto"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "O banco de dados de configurações não é gravável"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "A localização do banco de dados não é válida, digite o caminho correto"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "DB não é gravável"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Configuração Básica"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Por favor, preencha todos os campos!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "O e-mail não é de um domínio válido"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Adicionar novo usuário"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Usuário '%(user)s' criado"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Encontrei uma conta existente para este endereço de e-mail ou apelido."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Usuário '%(nick)s' excluído"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Nenhum usuário administrador restante, não é possível excluir o usuário"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Editar usuário %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Usuário '%(nick)s' atualizado"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Ocorreu um erro desconhecido."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Editar configurações do servidor de e-mail"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Ocorreu um erro ao enviar o e-mail de teste: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Por favor, configure seu endereço de e-mail primeiro..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Atualização das configurações do servidor de e-mail"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Senha para redefinição do usuário %(user)s"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Ocorreu um erro desconhecido. Por favor, tente novamente mais tarde."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Por favor, configure primeiro as configurações de correio SMTP..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "visualizador de arquivo de registro"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Solicitação de pacote de atualização"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Download do pacote de atualização"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Descompactação de pacote de atualização"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Substituição de arquivos"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "As ligações à base de dados estão fechadas"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Parar servidor"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Atualização concluída, pressione okay e recarregue a página"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Atualização falhou:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "Erro HTTP"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Erro de conexão"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Tempo limite durante o estabelecimento da conexão"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Erro geral"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Arquivo de atualização não pôde ser salvo no diretório temporário"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Falha na criação no mínimo de um usuário LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Erro: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Erro: Nenhum usuário retornado em resposta do servidor LDAP"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "No mínimo um usuário LDAP não encontrado no banco de dados"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr "{} Usuário Importado com Sucesso"
 
@@ -438,6 +446,11 @@ msgstr "não configurado"
 msgid "Execution permissions missing"
 msgstr "Faltam as permissões de execução"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "A coluna personalizada No.%(column)d não existe no banco de dados do calibre"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "Formato do Livro Eliminado com Sucesso"
@@ -446,8 +459,8 @@ msgstr "Formato do Livro Eliminado com Sucesso"
 msgid "Book Successfully Deleted"
 msgstr "Livro Eliminado com Sucesso"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Erro ao abrir o eBook. O arquivo não existe ou o arquivo não é acessível"
 
@@ -460,76 +473,76 @@ msgstr "editar metadados"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s não é um idioma válido"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "A extensão de arquivo '%(ext)s' não pode ser enviada para este servidor"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "O arquivo a ser carregado deve ter uma extensão"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Falha ao criar o caminho %(path)s (Permission denied)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Falha ao armazenar o arquivo %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "Erro de banco de dados: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Formato de arquivo %(ext)s adicionado a %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr "Os identificadores não são sensíveis a maiúsculas ou minúsculas, mas sim a maiúsculas e minúsculas"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadados atualizados com sucesso"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Livro de edição de erros, por favor verifique o ficheiro de registo para mais detalhes"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "O livro carregado provavelmente existe na biblioteca, considere mudar antes de carregar novo: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "O arquivo %(filename)s não pôde ser salvo no diretório temporário"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "Falha ao mover arquivo de capa  %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Arquivo %(file)s enviado"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Falta o formato de origem ou destino para a conversão"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Livro enfileirado com sucesso para conversão em %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Ocorreu um erro ao converter este livro: %(res)s"
@@ -715,7 +728,7 @@ msgstr "Configuração Kobo"
 msgid "Register with %(provider)s"
 msgstr "Registre-se com %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "agora você está logado como: '%(nickname)s'"
@@ -785,7 +798,7 @@ msgstr "Todos"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "login"
 
@@ -801,7 +814,7 @@ msgstr "O Token expirou"
 msgid "Success! Please return to your device"
 msgstr "Sucesso! Por favor, volte ao seu aparelho"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Livros"
 
@@ -826,7 +839,7 @@ msgstr "Livros descarregados"
 msgid "Show Downloaded Books"
 msgstr "Mostrar Livros Descarregados"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Livros Mais Bem Avaliados"
 
@@ -835,7 +848,7 @@ msgid "Show Top Rated Books"
 msgstr "Mostrar os melhores livros avaliados"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Ler Livros"
 
@@ -844,7 +857,7 @@ msgid "Show read and unread"
 msgstr "Mostrar lido e não lido"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Livros Não Lidos"
 
@@ -862,7 +875,7 @@ msgid "Show random books"
 msgstr "Mostrar livros aleatórios"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Categorias"
 
@@ -872,7 +885,7 @@ msgstr "Mostrar seleção de categoria"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Série"
 
@@ -890,7 +903,7 @@ msgid "Show author selection"
 msgstr "Mostrar selecção de autor"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Editores"
 
@@ -900,7 +913,7 @@ msgstr "Mostrar selecção de editores"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Idiomas"
 
@@ -924,7 +937,7 @@ msgstr "Formatos de arquivo"
 msgid "Show file formats selection"
 msgstr "Mostrar seleção de formatos de arquivo"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "Livros Arquivados"
 
@@ -932,7 +945,7 @@ msgstr "Livros Arquivados"
 msgid "Show archived books"
 msgstr "Mostrar livros arquivados"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr "Lista de Livros"
 
@@ -1064,190 +1077,185 @@ msgstr "Uma nova atualização está disponível. Clique no botão abaixo para a
 msgid "No release information available"
 msgstr "Não há informações de lançamento disponíveis"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Descobrir (Livros Aleatórios)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Hot Books (Os Mais Descarregados)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr "Livros baixados por %(user)s"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Oops! O título do livro seleccionado não está disponível. O arquivo não existe ou não é acessível"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Autor: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Editor: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Série: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Avaliação: %(rating)s estrelas"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Formato do arquivo: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Categoria: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Idioma: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "A coluna personalizada No.%(column)d não existe no banco de dados do calibre"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Pesquisa Avançada"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Pesquisa"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Downloads"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Lista de classificações"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Lista de formatos de arquivo"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Tarefas"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Publicado depois de "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Publicado antes de "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Avaliação <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Avaliação >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr "Status de leitura  = %(status)s"
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Livro enfileirado com sucesso para envio para %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Ups! Ocorreu um erro ao enviar este livro: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Por favor, atualize seu perfil com um endereço de e-mail válido para Kindle."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "O servidor de E-Mail não está configurado, por favor contacte o seu administrador!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "cadastro"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Seu e-mail não tem permissão para registrar"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "O e-mail de confirmação foi enviado para a sua conta de e-mail."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Não é possível ativar a autenticação LDAP"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Login de reserva como:'%(nickname)s', servidor LDAP não acessível ou usuário desconhecido"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Não foi possível fazer o login: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Nome de usuário ou senha incorretos"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Nova senha foi enviada para seu endereço de e-mail"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Por favor, digite um nome de usuário válido para redefinir a senha"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Você agora está logado como: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Perfil de %(name)s's"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Perfil atualizado"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Encontrado uma conta existente para este endereço de e-mail."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Ler um livro"
 
@@ -1504,7 +1512,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1602,13 +1610,13 @@ msgstr "Converter livro"
 msgid "Book Title"
 msgstr "Título do Livro"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Autor"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Descrição"
 
@@ -1616,15 +1624,15 @@ msgstr "Descrição"
 msgid "Identifiers"
 msgstr "Identificadores"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "Tipo de identificador"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "Valor do Identificador"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "Remover"
@@ -1657,8 +1665,8 @@ msgstr "Upload de  capa do disco local"
 msgid "Published Date"
 msgstr "Data de Publicação"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Editora"
@@ -1678,56 +1686,56 @@ msgstr "Sim"
 msgid "No"
 msgstr "Não"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Formato de upload"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Ver Livro ao salvar"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Buscar Metadados"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Salvar"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Palavra-chave"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Pesquisar palavra-chave "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Clique na capa para carregar os metadados para o formulário"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "A carregar..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Fechar"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Fonte"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Erro de busca!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Nenhum resultado(s) encontrado(s)! Por favor, tente outra palavra-chave."
 
@@ -2252,45 +2260,45 @@ msgstr "de"
 msgid "Published"
 msgstr "Publicado em"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Marcar como não lido"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Marcar como lido"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Leia"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "Restaurar do arquivo"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "Adicionar ao arquivo"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "Arquivado em"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Descrição:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Adicionar à estante"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Público)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Editar Metadados"
 
@@ -2834,6 +2842,14 @@ msgstr "Classificação Acima"
 msgid "Rating Below"
 msgstr "Classificação Abaixo"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Excluir esta estante"
diff --git a/cps/translations/ru/LC_MESSAGES/messages.mo b/cps/translations/ru/LC_MESSAGES/messages.mo
index 8669fd2e..21d04b0d 100644
Binary files a/cps/translations/ru/LC_MESSAGES/messages.mo and b/cps/translations/ru/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/ru/LC_MESSAGES/messages.po b/cps/translations/ru/LC_MESSAGES/messages.po
index 0c174707..e836e557 100644
--- a/cps/translations/ru/LC_MESSAGES/messages.po
+++ b/cps/translations/ru/LC_MESSAGES/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-04-29 01:20+0400\n"
 "Last-Translator: ZIZA\n"
 "Language: ru\n"
@@ -17,7 +17,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -47,9 +47,9 @@ msgstr "Успешно переподключено"
 msgid "Unknown command"
 msgstr "Неизвестная команда"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Неизвестно"
@@ -72,7 +72,7 @@ msgstr "Управление сервером"
 msgid "all"
 msgstr "Все"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -89,7 +89,7 @@ msgstr "Показать все"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -97,7 +97,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -133,303 +133,311 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Конфигурация Calibre-Web обновлена"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Вы действительно хотите удалить Kobo Token ?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Вы действительно хотите удалить эту книжную полку?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Вы действительно хотите удалить эту книжную полку?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Вы действительно хотите удалить эту книжную полку?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Запретить"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Разрешить"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json не настроен для веб-приложения"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Неправильное расположение файла журнала, пожалуйста, введите правильный путь."
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "Недопустимое расположение файла журнала доступа, пожалуйста, введите правильный путь"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "Пожалуйста, введите провайдера LDAP, порт, DN и идентификатор объекта пользователя"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "Фильтр объектов группы LDAP должен иметь один идентификатор формата \"%s\""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "Фильтр объектов группы LDAP имеет незавершённые круглые скобки"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "Фильтр объектов пользователя LDAP должен иметь один идентификатор формата \"%s\""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "Фильтр объектов пользователя LDAP имеет незавершенную круглую скобку"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "Расположение ключевого файла неверно, пожалуйста, введите правильный путь"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "Расположение Certfile не является действительным, пожалуйста, введите правильный путь"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "Расположение Базы Данных неверно, пожалуйста, введите правильный путь."
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Настройки сервера"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Пожалуйста, заполните все поля!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "E-mail не из существующей доменной зоны"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Добавить пользователя"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Пользователь '%(user)s' добавлен"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Для этого адреса электронной почты или логина уже есть учётная запись."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Пользователь '%(nick)s' удалён"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Это последний администратор, невозможно удалить пользователя"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Изменить пользователя %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Пользователь '%(nick)s' обновлён"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Произошла неизвестная ошибка."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Изменить настройки SMTP"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Произошла ошибка при отправке тестового письма на: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Пожалуйста, сначала настройте свой адрес электронной почты ..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "Настройки E-mail сервера обновлены"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Пароль для пользователя %(user)s сброшен"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Неизвестная ошибка. Попробуйте позже."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Пожалуйста, сперва настройте параметры SMTP....."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Просмотр лога"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Проверка обновлений"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Загрузка обновлений"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Распаковка обновлений"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Замена файлов"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Соединения с базой данных закрыты"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Остановка сервера"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Обновления установлены, нажмите ок и перезагрузите страницу"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Ошибка обновления:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "Ошибка HTTP"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Ошибка соединения"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Тайм-аут при установлении соединения"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Общая ошибка"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "Не удалось сохранить файл обновления во временной папке."
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "Не удалось создать хотя бы одного пользователя LDAP"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "Ошибка: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "Ошибка: ни одного пользователя не найдено в ответ на запрос сервер LDAP"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "По крайней мере, один пользователь LDAP не найден в базе данных"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -441,6 +449,11 @@ msgstr "не настроено"
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -449,8 +462,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Ошибка при открытии eBook. Файл не существует или файл недоступен"
 
@@ -463,76 +476,76 @@ msgstr "изменить метаданные"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s не допустимый язык"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Запрещена загрузка файлов с расширением '%(ext)s'"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Загружаемый файл должен иметь расширение"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Ошибка при создании пути %(path)s (Доступ запрещён)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Не удалось сохранить файл %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Формат файла %(ext)s добавлен в %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Метаданные обновлены"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Ошибка редактирования книги. Пожалуйста, проверьте лог-файл для дополнительной информации"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Загруженная книга, вероятно, существует в библиотеке, перед тем как загрузить новую, рассмотрите возможность изменения: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Файл %(filename)s не удалось сохранить во временную папку"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Файл %(file)s загружен"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Исходный или целевой формат для конвертирования отсутствует"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Книга успешно поставлена в очередь для конвертирования в %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Произошла ошибка при конвертирования этой книги: %(res)s"
@@ -718,7 +731,7 @@ msgstr "Настройка Kobo"
 msgid "Register with %(provider)s"
 msgstr "Зарегистрируйтесь с %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "вы вошли как пользователь '%(nickname)s'"
@@ -788,7 +801,7 @@ msgstr "Все"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "войти"
 
@@ -804,7 +817,7 @@ msgstr "Ключ просрочен"
 msgid "Success! Please return to your device"
 msgstr "Успешно! Пожалуйста, проверьте свое устройство"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Книги"
 
@@ -829,7 +842,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Книги с наилучшим рейтингом"
 
@@ -838,7 +851,7 @@ msgid "Show Top Rated Books"
 msgstr "Показывать книги с наивысшим рейтингом"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Прочитанные Книги"
 
@@ -847,7 +860,7 @@ msgid "Show read and unread"
 msgstr "Показывать прочитанные и непрочитанные"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Непрочитанные Книги"
 
@@ -865,7 +878,7 @@ msgid "Show random books"
 msgstr "Показывать случайные книги"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Категории"
 
@@ -875,7 +888,7 @@ msgstr "Показывать выбор категории"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Серии"
 
@@ -893,7 +906,7 @@ msgid "Show author selection"
 msgstr "Показывать выбор автора"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Издатели"
 
@@ -903,7 +916,7 @@ msgstr "Показать выбор издателя"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Языки"
 
@@ -927,7 +940,7 @@ msgstr "Форматы файлов"
 msgid "Show file formats selection"
 msgstr "Показать выбор форматов файлов"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -935,7 +948,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1067,190 +1080,185 @@ msgstr "Новое обновление доступно. Нажмите на к
 msgid "No release information available"
 msgstr "Информация о выпуске недоступна"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Обзор (Случайные Книги)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Популярные книги (часто загружаемые)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Невозможно открыть книгу. Файл не существует или недоступен"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Автор: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Издатель: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Серии: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Оценка: %(rating)s звезды(а)"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Формат файла: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Категория: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Язык: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Расширенный поиск"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Поиск"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "Скачать"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Список рейтингов"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Список форматов файлов"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Задания"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Опубликовано после "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Опубликовано до "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Рейтинг <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Рейтинг >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Книга успешно поставлена в очередь для отправки на %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "При отправке этой книги произошла ошибка: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Пожалуйста, сначала настройте e-mail на вашем kindle..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "Сервер электронной почты не настроен, обратитесь к администратору !"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "регистрация"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Ваш e-mail не подходит для регистрации"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Письмо с подтверждением отправлено вам на e-mail."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Не удается активировать LDAP аутентификацию"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "Резервный вход в систему как: '%(nickname)s', LDAP-сервер недоступен или пользователь не известен"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "Не удалось войти: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Ошибка в имени пользователя или пароле"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Новый пароль был отправлен на ваш адрес электронной почты"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Пожалуйста, введите действительное имя пользователя для сброса пароля"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Вы вошли как: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Профиль %(name)s's"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Профиль обновлён"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Этот адрес электронной почты уже зарегистрирован."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Читать Книгу"
 
@@ -1507,7 +1515,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1605,13 +1613,13 @@ msgstr "Конвертировать книгу"
 msgid "Book Title"
 msgstr "Название книги"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Автор"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Описание"
 
@@ -1619,15 +1627,15 @@ msgstr "Описание"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1660,8 +1668,8 @@ msgstr "Загрузить обложку с диска"
 msgid "Published Date"
 msgstr "Опубликовано"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Издатель"
@@ -1681,56 +1689,56 @@ msgstr "Да"
 msgid "No"
 msgstr "Нет"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Загружаемый формат"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Просмотреть книгу после сохранения"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Получить метаданные"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Сохранить"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Ключевое слово"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Поиск по ключевому слову "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Нажмите на обложку, чтобы получить метаданные"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Загрузка..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Закрыть"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Источник"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Ошибка поиска!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Результат(ы) не найдены! Попробуйте другое ключевое слово."
 
@@ -2255,45 +2263,45 @@ msgstr "из"
 msgid "Published"
 msgstr "Опубликованный"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Отметить как непрочитанное"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Отметить как прочитанное"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Прочесть"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Описание:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Добавить на книжную полку"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(Публичная)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Редактировать метаданные"
 
@@ -2837,6 +2845,14 @@ msgstr "Рейтинг больше чем"
 msgid "Rating Below"
 msgstr "Рейтинг меньше чем"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Удалить эту книжную полку"
diff --git a/cps/translations/sv/LC_MESSAGES/messages.mo b/cps/translations/sv/LC_MESSAGES/messages.mo
index b51dcc5f..6effdf69 100644
Binary files a/cps/translations/sv/LC_MESSAGES/messages.mo and b/cps/translations/sv/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/sv/LC_MESSAGES/messages.po b/cps/translations/sv/LC_MESSAGES/messages.po
index 307c4c09..1be0a426 100644
--- a/cps/translations/sv/LC_MESSAGES/messages.po
+++ b/cps/translations/sv/LC_MESSAGES/messages.po
@@ -7,8 +7,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/Calibre-Web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
-"PO-Revision-Date: 2020-03-14 09:30+0100\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
+"PO-Revision-Date: 2021-05-13 11:00+0000\n"
 "Last-Translator: Jonatan Nyberg <jonatan.nyberg.karl@gmail.com>\n"
 "Language: sv\n"
 "Language-Team: \n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -40,15 +40,15 @@ msgstr "Stänger servern, vänligen stäng fönstret"
 
 #: cps/admin.py:161
 msgid "Reconnect successful"
-msgstr ""
+msgstr "Återanslutning lyckades"
 
 #: cps/admin.py:164
 msgid "Unknown command"
-msgstr ""
+msgstr "Okänt kommando"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Okänd"
@@ -62,22 +62,20 @@ msgid "UI Configuration"
 msgstr "Användargränssnitt konfiguration"
 
 #: cps/admin.py:249 cps/templates/admin.html:46
-#, fuzzy
 msgid "Edit Users"
-msgstr "Adminstratör användare"
+msgstr "Redigera användare"
 
 #: cps/admin.py:290
-#, fuzzy
 msgid "all"
-msgstr "Alla"
+msgstr "alla"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
-msgstr ""
+msgstr "Användaren hittades inte"
 
 #: cps/admin.py:329
 msgid "{} users deleted successfully"
-msgstr ""
+msgstr "{} användare har tagits bort"
 
 #: cps/admin.py:351 cps/templates/user_edit.html:44
 #: cps/templates/user_table.html:69
@@ -86,351 +84,356 @@ msgstr "Visa alla"
 
 #: cps/admin.py:372 cps/admin.py:378
 msgid "Malformed request"
-msgstr ""
+msgstr "Felaktig begäran"
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
-msgstr ""
+msgstr "Gästnamn kan inte ändras"
 
 #: cps/admin.py:400
 msgid "Guest can't have this role"
-msgstr ""
+msgstr "Gäst kan inte ha den här rollen"
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
-msgstr ""
+msgstr "Ingen administratörsanvändare kvar, kan inte ta bort administratörsrollen"
 
 #: cps/admin.py:416 cps/admin.py:430
 msgid "Value has to be true or false"
-msgstr ""
+msgstr "Värdet måste vara sant eller falskt"
 
 #: cps/admin.py:418
 msgid "Invalid role"
-msgstr ""
+msgstr "Ogiltig roll"
 
 #: cps/admin.py:422
 msgid "Guest can't have this view"
-msgstr ""
+msgstr "Gästen kan inte ha den här vyn"
 
 #: cps/admin.py:432
 msgid "Invalid view"
-msgstr ""
+msgstr "Ogiltig vy"
 
 #: cps/admin.py:435
 msgid "Guest's Locale is determined automatically and can't be set"
-msgstr ""
+msgstr "Gästens språk bestäms automatiskt och kan inte ställas in"
 
 #: cps/admin.py:439
 msgid "No Valid Locale Given"
-msgstr ""
+msgstr "Inget giltigt språk anges"
 
 #: cps/admin.py:450
 msgid "No Valid Book Language Given"
-msgstr ""
+msgstr "Inget giltigt bokspråk anges"
 
 #: cps/admin.py:452
 msgid "Parameter not found"
+msgstr "Parameter hittades inte"
+
+#: cps/admin.py:507
+#, fuzzy
+msgid "Invalid Read Column"
+msgstr "Ogiltig roll"
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Calibre-Web konfiguration uppdaterad"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "Vill du verkligen ta bort Kobo-token?"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
-msgstr ""
+msgstr "Vill du verkligen ta bort den här domänen?"
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
-msgstr ""
+msgstr "Vill du verkligen ta bort den här användaren?"
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Är du säker på att du vill ta bort hyllan?"
 
-#: cps/admin.py:526
-#, fuzzy
+#: cps/admin.py:552
 msgid "Are you sure you want to change locales of selected user(s)?"
-msgstr "Är du säker på att du vill ta bort hyllan?"
+msgstr "Är du säker på att du vill ändra språk för valda användare?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
-msgstr ""
+msgstr "Är du säker på att du vill ändra synliga bokspråk för valda användare?"
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
-msgstr ""
+msgstr "Är du säker på att du vill ändra den valda rollen för de valda användarna?"
 
-#: cps/admin.py:532
-#, fuzzy
+#: cps/admin.py:558
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
-msgstr "Är du säker på att du vill ta bort hyllan?"
+msgstr "Är du säker på att du vill ändra de valda begränsningarna för de valda användarna?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
-msgstr ""
+msgstr "Är du säker på att du vill ändra de valda synlighetsbegränsningarna för de valda användarna?"
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
-msgstr ""
+msgstr "Taggen hittades inte"
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
-msgstr ""
+msgstr "Ogiltig åtgärd"
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "Förneka"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "Tillåt"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
-msgstr ""
+msgstr "client_secrets.json är inte konfigurerad för webbapplikation"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
-msgstr ""
+msgstr "Loggfilens plats är inte giltig, vänligen ange rätt sökväg"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
-msgstr ""
-
-#: cps/admin.py:1052
-msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
-msgstr ""
-
-#: cps/admin.py:1067
-#, python-format
-msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
-msgstr ""
-
-#: cps/admin.py:1070
-msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
-msgstr ""
-
-#: cps/admin.py:1075
-#, python-format
-msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
-msgstr ""
+msgstr "Åtkomstloggplatsens plats är inte giltig, vänligen ange rätt sökväg"
 
 #: cps/admin.py:1078
-msgid "LDAP User Object Filter Has Unmatched Parenthesis"
-msgstr ""
+msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
+msgstr "Vänligen ange en LDAP-leverantör, port, DN och användarobjektidentifierare"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1093
+#, python-format
+msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
+msgstr "LDAP-gruppobjektfilter måste ha en \"%s\"-formatidentifierare"
+
+#: cps/admin.py:1096
+msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
+msgstr "LDAP-gruppobjektfilter har omatchande parentes"
+
+#: cps/admin.py:1101
+#, python-format
+msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
+msgstr "LDAP-användarobjektfilter måste ha en \"%s\"-formatidentifierare"
+
+#: cps/admin.py:1104
+msgid "LDAP User Object Filter Has Unmatched Parenthesis"
+msgstr "LDAP-användarobjektfilter har omatchad parentes"
+
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
-msgstr ""
+msgstr "Användarfilter för LDAP-medlemmar måste ha en \"%s\"-formatidentifierare"
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
-msgstr ""
-
-#: cps/admin.py:1097
-msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
-msgstr ""
+msgstr "Användarfilter för LDAP-medlemmar har omatchad parentes"
 
 #: cps/admin.py:1123
+msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
+msgstr "LDAP-certifikat, certifikat eller nyckelplats är inte giltigt, vänligen ange rätt sökväg"
+
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
-msgstr ""
+msgstr "Keyfile-platsen är inte giltig, vänligen ange rätt sökväg"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
-msgstr ""
+msgstr "Certfile-platsen är inte giltig, vänligen ange rätt sökväg"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
-msgstr ""
+msgstr "Inställningar för DB är inte skrivbara"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
-msgstr ""
+msgstr "DB-plats är inte giltig, vänligen ange rätt sökväg"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
-msgstr ""
+msgstr "DB är inte skrivbar"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Grundläggande konfiguration"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Fyll i alla fält!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "E-posten är inte från giltig domän"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Lägg till ny användare"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Användaren '%(user)s' skapad"
 
-#: cps/admin.py:1299
-#, fuzzy
+#: cps/admin.py:1325
 msgid "Found an existing account for this e-mail address or name."
-msgstr "Hittade ett befintligt konto för den här e-postadressen eller smeknamnet."
+msgstr "Hittade ett befintligt konto för den här e-postadressen eller namnet."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Användaren '%(nick)s' borttagen"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
-msgstr ""
+msgstr "Det går inte att ta bort gästanvändaren"
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Ingen adminstratörsanvändare kvar, kan inte ta bort användaren"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Redigera användaren %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Användaren '%(nick)s' uppdaterad"
 
-#: cps/admin.py:1391
-#, fuzzy
+#: cps/admin.py:1417
 msgid "An unknown error occurred."
 msgstr "Ett okänt fel uppstod."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Ändra SMTP-inställningar"
 
-#: cps/admin.py:1442
-msgid "G-Mail Account Verification Successful"
-msgstr ""
-
 #: cps/admin.py:1468
+msgid "G-Mail Account Verification Successful"
+msgstr "Verifiering av G-mail-kontot lyckades"
+
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
-msgstr ""
+msgstr "Testa e-post i kö för att skicka till %(email)s, vänligen kontrollera Uppgifter för resultat"
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Det gick inte att skicka Testmeddelandet: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Vänligen konfigurera din e-postadress först..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "E-postserverinställningar uppdaterade"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "Lösenord för användaren %(user)s återställd"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Ett okänt fel uppstod. Försök igen senare."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Konfigurera SMTP-postinställningarna först..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Visaren för loggfil"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Begär uppdateringspaketet"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Hämtar uppdateringspaketet"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Packar upp uppdateringspaketet"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Ersätta filer"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Databasanslutningarna är stängda"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Stoppar server"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Uppdatering klar, tryck på okej och uppdatera sidan"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Uppdateringen misslyckades:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP-fel"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Anslutningsfel"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Tiden ute när du etablerade anslutning"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Allmänt fel"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
-msgstr ""
+msgstr "Uppdateringsfilen kunde inte sparas i Temp Dir"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
-msgstr ""
+msgstr "Det gick inte att skapa minst en LDAP-användare"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
-msgstr ""
+msgstr "Fel: %(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
-msgstr ""
+msgstr "Fel: Ingen användare återges som svar på LDAP-servern"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
-msgstr ""
+msgstr "Minst en LDAP-användare hittades inte i databasen"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
-msgstr ""
+msgstr "{} användare har importerats"
 
 #: cps/converter.py:31
 msgid "not configured"
@@ -438,18 +441,23 @@ msgstr "inte konfigurerad"
 
 #: cps/converter.py:33
 msgid "Execution permissions missing"
-msgstr ""
+msgstr "Körningstillstånd saknas"
+
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "Anpassad kolumn n.%(column)d finns inte i calibre-databasen"
 
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
-msgstr ""
+msgstr "Bokformat har tagits bort"
 
 #: cps/editbooks.py:303 cps/editbooks.py:305
 msgid "Book Successfully Deleted"
-msgstr ""
+msgstr "Boken har tagits bort"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Det gick inte att öppna e-boken. Filen finns inte eller filen är inte tillgänglig"
 
@@ -462,76 +470,76 @@ msgstr "redigera metadata"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s är inte ett giltigt språk"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "Filändelsen '%(ext)s' får inte laddas upp till den här servern"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Filen som ska laddas upp måste ha en ändelse"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "Det gick inte att skapa sökväg %(path)s (behörighet nekad)."
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "Det gick inte att lagra filen %(file)s."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
-msgstr ""
+msgstr "Databasfel: %(error)s."
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "Filformatet %(ext)s lades till %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
-msgstr ""
+msgstr "Identifierare är inte skiftlägeskänsliga, skriver över gammal identifierare"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metadata uppdaterades"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Det gick inte att redigera boken, kontrollera loggfilen för mer information"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Uppladdad bok finns förmodligen i biblioteket, överväg att ändra innan du laddar upp nya: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "Filen %(filename)s kunde inte sparas i temp dir"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
-msgstr ""
+msgstr "Det gick inte att flytta omslagsfil %(file)s: %(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "Filen %(file)s uppladdad"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Källa eller målformat för konvertering saknas"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "Boken är i kö för konvertering till %(book_format)s"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Det gick inte att konvertera den här boken: %(res)s"
@@ -607,17 +615,17 @@ msgstr "Den begärda filen kunde inte läsas. Kanske fel behörigheter?"
 #: cps/helper.py:318
 #, python-format
 msgid "Deleting bookfolder for book %(id)s failed, path has subfolders: %(path)s"
-msgstr ""
+msgstr "Borttagning av bokmapp för boken %(id)s misslyckades, sökvägen har undermappar: %(path)s"
 
 #: cps/helper.py:324
 #, python-format
 msgid "Deleting book %(id)s failed: %(message)s"
-msgstr ""
+msgstr "Borttagning av boken %(id)s misslyckades: %(message)s"
 
 #: cps/helper.py:334
 #, python-format
 msgid "Deleting book %(id)s, book path not valid: %(path)s"
-msgstr ""
+msgstr "Borttagning av boken %(id)s, boksökväg inte giltig: %(path)s"
 
 #: cps/helper.py:389
 #, python-format
@@ -640,9 +648,8 @@ msgid "Book path %(path)s not found on Google Drive"
 msgstr "Boksökvägen %(path)s hittades inte på Google Drive"
 
 #: cps/helper.py:511
-#, fuzzy
 msgid "Found an existing account for this e-mail address"
-msgstr "Hittade ett befintligt konto för den här e-postadressen."
+msgstr "Hittade ett befintligt konto för den här e-postadressen"
 
 #: cps/helper.py:519
 msgid "This username is already taken"
@@ -650,15 +657,15 @@ msgstr "Detta användarnamn är redan taget"
 
 #: cps/helper.py:529
 msgid "Invalid e-mail address format"
-msgstr ""
+msgstr "Ogiltigt e-postadressformat"
 
 #: cps/helper.py:602
 msgid "Error Downloading Cover"
-msgstr ""
+msgstr "Fel vid hämtning av omslaget"
 
 #: cps/helper.py:605
 msgid "Cover Format Error"
-msgstr ""
+msgstr "Fel på omslagsformat"
 
 #: cps/helper.py:615
 msgid "Failed to create path for cover"
@@ -666,11 +673,11 @@ msgstr "Det gick inte att skapa sökväg för omslag"
 
 #: cps/helper.py:631
 msgid "Cover-file is not a valid image file, or could not be stored"
-msgstr ""
+msgstr "Omslagsfilen är inte en giltig bildfil eller kunde inte lagras"
 
 #: cps/helper.py:642
 msgid "Only jpg/jpeg/png/webp/bmp files are supported as coverfile"
-msgstr ""
+msgstr "Endast jpg/jpeg/png/webp/bmp-filer stöds som omslagsfil"
 
 #: cps/helper.py:655
 msgid "Only jpg/jpeg files are supported as coverfile"
@@ -678,11 +685,11 @@ msgstr "Endast jpg/jpeg-filer stöds som omslagsfil"
 
 #: cps/helper.py:707
 msgid "Unrar binary file not found"
-msgstr ""
+msgstr "Unrar binär fil hittades inte"
 
 #: cps/helper.py:721
 msgid "Error excecuting UnRar"
-msgstr ""
+msgstr "Fel vid körning av UnRar"
 
 #: cps/helper.py:769
 msgid "Waiting"
@@ -717,7 +724,7 @@ msgstr "Kobo-installation"
 msgid "Register with %(provider)s"
 msgstr "Registrera dig med %(provider)s"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "du är nu inloggad som: \"%(nickname)s\""
@@ -725,26 +732,26 @@ msgstr "du är nu inloggad som: \"%(nickname)s\""
 #: cps/oauth_bb.py:149
 #, python-format
 msgid "Link to %(oauth)s Succeeded"
-msgstr ""
+msgstr "Länk till %(oauth)s lyckades"
 
 #: cps/oauth_bb.py:156
 msgid "Login failed, No User Linked With OAuth Account"
-msgstr ""
+msgstr "Inloggningen misslyckades, ingen användare kopplad till OAuth-konto"
 
 #: cps/oauth_bb.py:198
 #, python-format
 msgid "Unlink to %(oauth)s Succeeded"
-msgstr ""
+msgstr "Sluta länka till %(oauth)s lyckades"
 
 #: cps/oauth_bb.py:203
 #, python-format
 msgid "Unlink to %(oauth)s Failed"
-msgstr ""
+msgstr "Sluta länka till %(oauth)s misslyckades"
 
 #: cps/oauth_bb.py:206
 #, python-format
 msgid "Not Linked to %(oauth)s"
-msgstr ""
+msgstr "Inte länkad till %(oauth)s"
 
 #: cps/oauth_bb.py:262
 msgid "Failed to log in with GitHub."
@@ -768,7 +775,7 @@ msgstr "GitHub Oauth-fel, försök igen senare."
 
 #: cps/oauth_bb.py:336
 msgid "GitHub Oauth error: {}"
-msgstr ""
+msgstr "GitHub Oauth-fel: {}"
 
 #: cps/oauth_bb.py:357
 msgid "Google Oauth error, please retry later."
@@ -776,7 +783,7 @@ msgstr "Google Oauth-fel, försök igen senare."
 
 #: cps/oauth_bb.py:360
 msgid "Google Oauth error: {}"
-msgstr ""
+msgstr "Google Oauth-fel: {}"
 
 #: cps/opds.py:110 cps/opds.py:199 cps/opds.py:276 cps/opds.py:328
 #: cps/templates/grid.html:14 cps/templates/list.html:14
@@ -785,9 +792,9 @@ msgstr "Alla"
 
 #: cps/opds.py:385
 msgid "{} Stars"
-msgstr ""
+msgstr "{} stjärnor"
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "logga in"
 
@@ -803,7 +810,7 @@ msgstr "Token har löpt ut"
 msgid "Success! Please return to your device"
 msgstr "Lyckades! Vänligen återvänd till din enhet"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "Böcker"
 
@@ -821,14 +828,14 @@ msgstr "Visa heta böcker"
 
 #: cps/render_template.py:46 cps/render_template.py:51
 msgid "Downloaded Books"
-msgstr ""
+msgstr "Hämtade böcker"
 
 #: cps/render_template.py:48 cps/render_template.py:53
 #: cps/templates/user_table.html:151
 msgid "Show Downloaded Books"
-msgstr ""
+msgstr "Visa hämtade böcker"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Bäst rankade böcker"
 
@@ -837,7 +844,7 @@ msgid "Show Top Rated Books"
 msgstr "Visa böcker med bästa betyg"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Lästa böcker"
 
@@ -846,7 +853,7 @@ msgid "Show read and unread"
 msgstr "Visa lästa och olästa"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Olästa böcker"
 
@@ -864,7 +871,7 @@ msgid "Show random books"
 msgstr "Visa slumpmässiga böcker"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Kategorier"
 
@@ -874,7 +881,7 @@ msgstr "Visa kategorival"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Serier"
 
@@ -892,7 +899,7 @@ msgid "Show author selection"
 msgstr "Visa författarval"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Förlag"
 
@@ -902,7 +909,7 @@ msgstr "Visa urval av förlag"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Språk"
 
@@ -926,21 +933,21 @@ msgstr "Filformat"
 msgid "Show file formats selection"
 msgstr "Visa val av filformat"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
-msgstr ""
+msgstr "Arkiverade böcker"
 
 #: cps/render_template.py:95 cps/templates/user_table.html:150
 msgid "Show archived books"
-msgstr ""
+msgstr "Visa arkiverade böcker"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
-msgstr ""
+msgstr "Boklista"
 
 #: cps/render_template.py:99 cps/templates/user_table.html:152
 msgid "Show Books List"
-msgstr ""
+msgstr "Visa boklista"
 
 #: cps/shelf.py:69 cps/shelf.py:124
 msgid "Invalid shelf specified"
@@ -993,7 +1000,7 @@ msgstr "Tyvärr har du inte rätt att ta bort en bok från den här hyllan: %(sn
 
 #: cps/shelf.py:231 cps/templates/layout.html:140
 msgid "Create a Shelf"
-msgstr "skapa en hylla"
+msgstr "Skapa en hylla"
 
 #: cps/shelf.py:238
 msgid "Edit a shelf"
@@ -1016,12 +1023,12 @@ msgstr "Det fanns ett fel"
 #: cps/shelf.py:290
 #, python-format
 msgid "A public shelf with the name '%(title)s' already exists."
-msgstr ""
+msgstr "En offentlig hylla med namnet \"%(title)s\" finns redan."
 
 #: cps/shelf.py:301
 #, python-format
 msgid "A private shelf with the name '%(title)s' already exists."
-msgstr ""
+msgstr "En privat hylla med namnet \"%(title)s\" finns redan."
 
 #: cps/shelf.py:370
 #, python-format
@@ -1066,220 +1073,215 @@ msgstr "En ny uppdatering är tillgänglig. Klicka på knappen nedan för att up
 msgid "No release information available"
 msgstr "Ingen versionsinformation tillgänglig"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Upptäck (slumpmässiga böcker)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Heta böcker (mest hämtade)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
-msgstr ""
+msgstr "Hämtade böcker av %(user)s"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Hoppsan! Vald boktitel är inte tillgänglig. Filen finns inte eller är inte tillgänglig"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Författare: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Förlag: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Serier: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Betyg: %(rating)s stars"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Filformat: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Kategori: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Språk: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Avancerad sökning"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Sök"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
-msgstr "DLS"
+msgstr "Hämtningar"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Betygslista"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Lista över filformat"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Uppgifter"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Publicerad efter "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Publicerad före "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Betyg <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Betyg >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
-msgstr ""
+msgstr "Lässtatus = %(status)s"
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "Boken är i kö för att skicka till %(kindlemail)s"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Det gick inte att skicka den här boken: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "Konfigurera din kindle-e-postadress först..."
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "E-postservern är inte konfigurerad, kontakta din administratör!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "registrera"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "Din e-post är inte tillåten att registrera"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Bekräftelsemail skickades till ditt e-postkonto."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "Det går inte att aktivera LDAP-autentisering"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
-msgstr ""
+msgstr "Det gick inte att logga in: %(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Fel användarnamn eller lösenord"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Nytt lösenord skickades till din e-postadress"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Ange giltigt användarnamn för att återställa lösenordet"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Du är nu inloggad som: \"%(nickname)s\""
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)ss profil"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profilen uppdaterad"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Hittade ett befintligt konto för den här e-postadressen."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Läs en bok"
 
 #: cps/services/gmail.py:41
 msgid "Found no valid gmail.json file with OAuth information"
-msgstr ""
+msgstr "Hittade ingen giltig gmail.json-fil med OAuth-information"
 
 #: cps/tasks/convert.py:114
 #, python-format
 msgid "Calibre ebook-convert %(tool)s not found"
-msgstr ""
+msgstr "calibre e-bokkonverterings %(tool)s hittades inte"
 
 #: cps/tasks/convert.py:138
 #, python-format
 msgid "%(format)s format not found on disk"
-msgstr ""
+msgstr "%(format)s-format hittades inte på disken"
 
 #: cps/tasks/convert.py:142
 msgid "Ebook converter failed with unknown error"
-msgstr ""
+msgstr "E-bokkonverteraren misslyckades med okänt fel"
 
 #: cps/tasks/convert.py:152
 #, python-format
 msgid "Kepubify-converter failed: %(error)s"
-msgstr ""
+msgstr "Kepubify-konverteraren misslyckades: %(error)s"
 
 #: cps/tasks/convert.py:176
 #, python-format
 msgid "Converted file not found or more than one file in folder %(folder)s"
-msgstr ""
+msgstr "Konverterad fil hittades inte eller mer än en fil i mappen %(folder)s"
 
 #: cps/tasks/convert.py:199
 #, python-format
@@ -1289,7 +1291,7 @@ msgstr "E-bokkonverteraren misslyckades: %(error)s"
 #: cps/tasks/convert.py:224
 #, python-format
 msgid "Calibre failed with error: %(error)s"
-msgstr ""
+msgstr "calibre misslyckades med fel: %(error)s"
 
 #: cps/templates/admin.html:9
 msgid "Users"
@@ -1349,7 +1351,7 @@ msgstr "Ta bort"
 
 #: cps/templates/admin.html:24
 msgid "Public Shelf"
-msgstr ""
+msgstr "Publik hylla"
 
 #: cps/templates/admin.html:47
 msgid "Add New User"
@@ -1357,7 +1359,7 @@ msgstr "Lägg till ny användare"
 
 #: cps/templates/admin.html:49
 msgid "Import LDAP Users"
-msgstr ""
+msgstr "Importera LDAP-användare"
 
 #: cps/templates/admin.html:56
 msgid "E-mail Server Settings"
@@ -1386,11 +1388,11 @@ msgstr "Från meddelande"
 
 #: cps/templates/admin.html:84
 msgid "E-Mail Service"
-msgstr ""
+msgstr "E-posttjänst"
 
 #: cps/templates/admin.html:85
 msgid "Gmail via Oauth2"
-msgstr ""
+msgstr "Gmail via Oauth2"
 
 #: cps/templates/admin.html:100
 msgid "Configuration"
@@ -1410,7 +1412,7 @@ msgstr "Port"
 
 #: cps/templates/admin.html:116
 msgid "External Port"
-msgstr ""
+msgstr "Extern port"
 
 #: cps/templates/admin.html:123 cps/templates/config_view_edit.html:27
 msgid "Books per Page"
@@ -1454,7 +1456,7 @@ msgstr "Administration"
 
 #: cps/templates/admin.html:160
 msgid "Download Debug Package"
-msgstr ""
+msgstr "Hämta felsökningspaketet"
 
 #: cps/templates/admin.html:161
 msgid "View Logs"
@@ -1506,7 +1508,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1534,32 +1536,32 @@ msgstr "I biblioteket"
 #: cps/templates/author.html:26 cps/templates/index.html:68
 #: cps/templates/search.html:29 cps/templates/shelf.html:16
 msgid "Sort according to book date, newest first"
-msgstr ""
+msgstr "Sortera efter bokdatum, nyast först"
 
 #: cps/templates/author.html:27 cps/templates/index.html:69
 #: cps/templates/search.html:30 cps/templates/shelf.html:17
 msgid "Sort according to book date, oldest first"
-msgstr ""
+msgstr "Sortera efter bokdatum, äldsta först"
 
 #: cps/templates/author.html:28 cps/templates/index.html:70
 #: cps/templates/search.html:31 cps/templates/shelf.html:18
 msgid "Sort title in alphabetical order"
-msgstr ""
+msgstr "Sortera titel i alfabetisk ordning"
 
 #: cps/templates/author.html:29 cps/templates/index.html:71
 #: cps/templates/search.html:32 cps/templates/shelf.html:19
 msgid "Sort title in reverse alphabetical order"
-msgstr ""
+msgstr "Sortera titel i omvänd alfabetisk ordning"
 
 #: cps/templates/author.html:30 cps/templates/index.html:74
 #: cps/templates/search.html:35 cps/templates/shelf.html:22
 msgid "Sort according to publishing date, newest first"
-msgstr ""
+msgstr "Sortera efter publiceringsdatum, nyast först"
 
 #: cps/templates/author.html:31 cps/templates/index.html:75
 #: cps/templates/search.html:36 cps/templates/shelf.html:23
 msgid "Sort according to publishing date, oldest first"
-msgstr ""
+msgstr "Sortera efter publiceringsdatum, äldsta först"
 
 #: cps/templates/author.html:57 cps/templates/author.html:117
 #: cps/templates/discover.html:30 cps/templates/index.html:29
@@ -1604,36 +1606,36 @@ msgstr "Konvertera boken"
 msgid "Book Title"
 msgstr "Boktitel"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Författare"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Beskrivning"
 
 #: cps/templates/book_edit.html:66
 msgid "Identifiers"
-msgstr ""
+msgstr "Identifierare"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
-msgstr ""
+msgstr "Identifierartyp"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
-msgstr ""
+msgstr "Identifierarvärde"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
-msgstr ""
+msgstr "Ta bort"
 
 #: cps/templates/book_edit.html:76
 msgid "Add Identifier"
-msgstr ""
+msgstr "Lägg till identifierare"
 
 #: cps/templates/book_edit.html:80 cps/templates/search_form.html:44
 msgid "Tags"
@@ -1659,8 +1661,8 @@ msgstr "Ladda upp omslag från lokal enhet"
 msgid "Published Date"
 msgstr "Publiceringsdatum"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Förlag"
@@ -1680,56 +1682,56 @@ msgstr "Ja"
 msgid "No"
 msgstr "Nej"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Ladda upp format"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "Visa bok vid Spara"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Hämta metadata"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "Spara"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Sökord"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Sök sökord "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Klicka på omslaget för att läsa in metadata till formuläret"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Läser in..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Stäng"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Källa"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Sökningsfel!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "Inga resultat hittades! Försök med ett annat sökord."
 
@@ -1737,27 +1739,27 @@ msgstr "Inga resultat hittades! Försök med ett annat sökord."
 #: cps/templates/user_table.html:13 cps/templates/user_table.html:65
 #: cps/templates/user_table.html:88
 msgid "This Field is Required"
-msgstr ""
+msgstr "Detta fält är obligatoriskt"
 
 #: cps/templates/book_table.html:24
 msgid "Merge selected books"
-msgstr ""
+msgstr "Slå ihop utvalda böcker"
 
 #: cps/templates/book_table.html:25 cps/templates/user_table.html:111
 msgid "Remove Selections"
-msgstr ""
+msgstr "Ta bort markeringar"
 
 #: cps/templates/book_table.html:31
 msgid "Update Title Sort automatically"
-msgstr ""
+msgstr "Uppdatera titelsortering automatiskt"
 
 #: cps/templates/book_table.html:35
 msgid "Update Author Sort automatically"
-msgstr ""
+msgstr "Uppdatera författarsortering automatiskt"
 
 #: cps/templates/book_table.html:47
 msgid "Enter Title"
-msgstr ""
+msgstr "Ange titel"
 
 #: cps/templates/book_table.html:47 cps/templates/config_view_edit.html:23
 #: cps/templates/shelf_edit.html:7
@@ -1766,51 +1768,51 @@ msgstr "Titel"
 
 #: cps/templates/book_table.html:48
 msgid "Enter Title Sort"
-msgstr ""
+msgstr "Ange titelsortering"
 
 #: cps/templates/book_table.html:48
 msgid "Title Sort"
-msgstr ""
+msgstr "Titelsortering"
 
 #: cps/templates/book_table.html:49
 msgid "Enter Author Sort"
-msgstr ""
+msgstr "Ange författarsortering"
 
 #: cps/templates/book_table.html:49
 msgid "Author Sort"
-msgstr ""
+msgstr "Författarsortering"
 
 #: cps/templates/book_table.html:50
 msgid "Enter Authors"
-msgstr ""
+msgstr "Ange författare"
 
 #: cps/templates/book_table.html:51
 msgid "Enter Categories"
-msgstr ""
+msgstr "Ange kategorier"
 
 #: cps/templates/book_table.html:52
 msgid "Enter Series"
-msgstr ""
+msgstr "Ange serier"
 
 #: cps/templates/book_table.html:53
 msgid "Enter title"
-msgstr ""
+msgstr "Ange titel"
 
 #: cps/templates/book_table.html:53
 msgid "Series Index"
-msgstr ""
+msgstr "Serieindex"
 
 #: cps/templates/book_table.html:54
 msgid "Enter Languages"
-msgstr ""
+msgstr "Ange språk"
 
 #: cps/templates/book_table.html:55
 msgid "Publishing Date"
-msgstr ""
+msgstr "Publiceringsdatum"
 
 #: cps/templates/book_table.html:56
 msgid "Enter Publishers"
-msgstr ""
+msgstr "Ange utgivare"
 
 #: cps/templates/book_table.html:71 cps/templates/modal_dialogs.html:46
 msgid "Are you really sure?"
@@ -1818,15 +1820,15 @@ msgstr "Är du verkligen säker?"
 
 #: cps/templates/book_table.html:75
 msgid "Books with Title will be merged from:"
-msgstr ""
+msgstr "Böcker med titel slås samman från:"
 
 #: cps/templates/book_table.html:79
 msgid "Into Book with Title:"
-msgstr ""
+msgstr "I bok med titel:"
 
 #: cps/templates/book_table.html:84
 msgid "Merge"
-msgstr ""
+msgstr "Slå samman"
 
 #: cps/templates/config_edit.html:12
 msgid "Library Configuration"
@@ -1838,7 +1840,7 @@ msgstr "Plats för Calibre-databasen"
 
 #: cps/templates/config_edit.html:29
 msgid "To activate serverside filepicker start Calibre-Web with -f option"
-msgstr ""
+msgstr "För att aktivera serversidan filpicker starta caliber-2eb med -f alternativet"
 
 #: cps/templates/config_edit.html:35
 msgid "Use Google Drive?"
@@ -1926,7 +1928,7 @@ msgstr "Aktivera uppladdning"
 
 #: cps/templates/config_edit.html:176
 msgid "Allowed Upload Fileformats"
-msgstr ""
+msgstr "Tillåtna filformat för uppladdning"
 
 #: cps/templates/config_edit.html:182
 msgid "Enable Anonymous Browsing"
@@ -1938,7 +1940,7 @@ msgstr "Aktivera offentlig registrering"
 
 #: cps/templates/config_edit.html:191
 msgid "Use E-Mail as Username"
-msgstr ""
+msgstr "Använd e-post som användarnamn"
 
 #: cps/templates/config_edit.html:196
 msgid "Enable Magic Link Remote Login"
@@ -1954,7 +1956,7 @@ msgstr "Proxy okänd begäran till Kobo Store"
 
 #: cps/templates/config_edit.html:209
 msgid "Server External Port (for port forwarded API calls)"
-msgstr ""
+msgstr "Extern port för server (för port vidarebefordrade API-anrop)"
 
 #: cps/templates/config_edit.html:217
 msgid "Use Goodreads"
@@ -2006,7 +2008,7 @@ msgstr "LDAP-serverport"
 
 #: cps/templates/config_edit.html:266
 msgid "LDAP Encryption"
-msgstr ""
+msgstr "LDAP-kryptering"
 
 #: cps/templates/config_edit.html:268 cps/templates/config_view_edit.html:61
 #: cps/templates/email_edit.html:40
@@ -2015,39 +2017,39 @@ msgstr "Ingen"
 
 #: cps/templates/config_edit.html:269
 msgid "TLS"
-msgstr ""
+msgstr "TLS"
 
 #: cps/templates/config_edit.html:270
 msgid "SSL"
-msgstr ""
+msgstr "SSL"
 
 #: cps/templates/config_edit.html:274
 msgid "LDAP CACertificate Path (Only needed for Client Certificate Authentication)"
-msgstr ""
+msgstr "LDAP CACertificate-sökväg (behövs endast för autentisering av klientcertifikat)"
 
 #: cps/templates/config_edit.html:281
 msgid "LDAP Certificate Path (Only needed for Client Certificate Authentication)"
-msgstr ""
+msgstr "LDAP-certifikatsökväg (behövs endast för autentisering av klientcertifikat)"
 
 #: cps/templates/config_edit.html:288
 msgid "LDAP Keyfile Path (Only needed for Client Certificate Authentication)"
-msgstr ""
+msgstr "LDAP-nyckelfilsökväg (behövs endast för autentisering av klientcertifikat)"
 
 #: cps/templates/config_edit.html:297
 msgid "LDAP Authentication"
-msgstr ""
+msgstr "LDAP-autentisering"
 
 #: cps/templates/config_edit.html:299
 msgid "Anonymous"
-msgstr ""
+msgstr "Anonym"
 
 #: cps/templates/config_edit.html:300
 msgid "Unauthenticated"
-msgstr ""
+msgstr "Oautentiserad"
 
 #: cps/templates/config_edit.html:301
 msgid "Simple"
-msgstr ""
+msgstr "Enkel"
 
 #: cps/templates/config_edit.html:306
 msgid "LDAP Administrator Username"
@@ -2071,35 +2073,35 @@ msgstr "LDAP-server är OpenLDAP?"
 
 #: cps/templates/config_edit.html:328
 msgid "Following Settings are Needed For User Import"
-msgstr ""
+msgstr "Följande inställningar behövs för användarimport"
 
 #: cps/templates/config_edit.html:330
 msgid "LDAP Group Object Filter"
-msgstr ""
+msgstr "LDAP-gruppobjektfilter"
 
 #: cps/templates/config_edit.html:334
 msgid "LDAP Group Name"
-msgstr ""
+msgstr "LDAP-gruppnamn"
 
 #: cps/templates/config_edit.html:338
 msgid "LDAP Group Members Field"
-msgstr ""
+msgstr "Fält för LDAP-gruppmedlemmar"
 
 #: cps/templates/config_edit.html:342
 msgid "LDAP Member User Filter Detection"
-msgstr ""
+msgstr "LDAP-användarfilterdetektering för medlemmar"
 
 #: cps/templates/config_edit.html:344
 msgid "Autodetect"
-msgstr ""
+msgstr "Upptäck automatiskt"
 
 #: cps/templates/config_edit.html:345
 msgid "Custom Filter"
-msgstr ""
+msgstr "Anpassat filter"
 
 #: cps/templates/config_edit.html:350
 msgid "LDAP Member User Filter"
-msgstr ""
+msgstr "LDAP-användarfilter för medlemmar"
 
 #: cps/templates/config_edit.html:361
 #, python-format
@@ -2122,15 +2124,15 @@ msgstr "Externa binärer"
 
 #: cps/templates/config_edit.html:390
 msgid "Path to Calibre E-Book Converter"
-msgstr ""
+msgstr "Sökväg till calibre e-bokkonverterare"
 
 #: cps/templates/config_edit.html:398
 msgid "Calibre E-Book Converter Settings"
-msgstr ""
+msgstr "Inställningar för calibre e-bokkonverterare"
 
 #: cps/templates/config_edit.html:401
 msgid "Path to Kepubify E-Book Converter"
-msgstr ""
+msgstr "Sökväg till Kepubify calibre e-bokkonverterare"
 
 #: cps/templates/config_edit.html:409
 msgid "Location of Unrar binary"
@@ -2254,67 +2256,67 @@ msgstr "av"
 msgid "Published"
 msgstr "Publicerad"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Markera som oläst"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Markera som läst"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Läst"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
-msgstr ""
+msgstr "Återställ från arkivet"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
-msgstr ""
+msgstr "Lägg till i arkivet"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
-msgstr ""
+msgstr "Arkiverad"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Beskrivning:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Lägg till hyllan"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
-msgstr ""
+msgstr "(Publik)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Redigera metadata"
 
 #: cps/templates/email_edit.html:12
 msgid "Choose Server Type"
-msgstr ""
+msgstr "Välj servertyp"
 
 #: cps/templates/email_edit.html:14
 msgid "Use Standard E-Mail Account"
-msgstr ""
+msgstr "Använd standard e-postkonto"
 
 #: cps/templates/email_edit.html:15
 msgid "Gmail Account with OAuth2 Verfification"
-msgstr ""
+msgstr "Gmail-konto med OAuth2-verifiering"
 
 #: cps/templates/email_edit.html:21
 msgid "Setup Gmail Account as E-Mail Server"
-msgstr ""
+msgstr "Ställ in Gmail-kontot som e-postserver"
 
 #: cps/templates/email_edit.html:23
 msgid "Revoke Gmail Access"
-msgstr ""
+msgstr "Återkalla Gmail-åtkomst"
 
 #: cps/templates/email_edit.html:41
 msgid "STARTTLS"
@@ -2330,7 +2332,7 @@ msgstr "SMTP-lösenord"
 
 #: cps/templates/email_edit.html:57
 msgid "Attachment Size Limit"
-msgstr ""
+msgstr "Gräns för bilagestorlek"
 
 #: cps/templates/email_edit.html:65
 msgid "Save and Send Test E-mail"
@@ -2360,7 +2362,7 @@ msgstr "Ange domännamn"
 
 #: cps/templates/email_edit.html:90
 msgid "Denied Domains (Blacklist)"
-msgstr "Nekade domäner för registrering"
+msgstr "Avvisade domäner för registrering"
 
 #: cps/templates/feed.xml:21 cps/templates/layout.html:170
 msgid "Next"
@@ -2381,20 +2383,20 @@ msgstr "Tillbaka till hemmet"
 #: cps/templates/index.html:72 cps/templates/search.html:33
 #: cps/templates/shelf.html:20
 msgid "Sort authors in alphabetical order"
-msgstr ""
+msgstr "Sortera författare i alfabetisk ordning"
 
 #: cps/templates/index.html:73 cps/templates/search.html:34
 #: cps/templates/shelf.html:21
 msgid "Sort authors in reverse alphabetical order"
-msgstr ""
+msgstr "Sortera författare i omvänd alfabetisk ordning"
 
 #: cps/templates/index.html:77
 msgid "Sort ascending according to series index"
-msgstr ""
+msgstr "Sortera stigande enligt serieindex"
 
 #: cps/templates/index.html:78
 msgid "Sort descending according to series index"
-msgstr ""
+msgstr "Sortera fallande enligt serieindex"
 
 #: cps/templates/index.xml:6
 msgid "Start"
@@ -2402,11 +2404,11 @@ msgstr "Starta"
 
 #: cps/templates/index.xml:18
 msgid "Alphabetical Books"
-msgstr ""
+msgstr "Alfabetiska böcker"
 
 #: cps/templates/index.xml:22
 msgid "Books sorted alphabetically"
-msgstr ""
+msgstr "Böcker sorterade alfabetiskt"
 
 #: cps/templates/index.xml:29
 msgid "Popular publications from this catalog based on Downloads."
@@ -2463,11 +2465,11 @@ msgstr "Böcker ordnade av filformat"
 #: cps/templates/index.xml:119 cps/templates/layout.html:135
 #: cps/templates/search_form.html:80
 msgid "Shelves"
-msgstr ""
+msgstr "Hyllor"
 
 #: cps/templates/index.xml:123
 msgid "Books organized in shelves"
-msgstr ""
+msgstr "Böcker organiserade i hyllor"
 
 #: cps/templates/layout.html:29
 msgid "Home"
@@ -2560,11 +2562,11 @@ msgstr "Visa åtkomstlogg: "
 
 #: cps/templates/logviewer.html:18
 msgid "Download Calibre-Web Log"
-msgstr ""
+msgstr "Hämta logg för calibre-web"
 
 #: cps/templates/logviewer.html:21
 msgid "Download Access Log"
-msgstr ""
+msgstr "Hämta åtkomstlogg"
 
 #: cps/templates/modal_dialogs.html:6
 msgid "Select Allowed/Denied Tags"
@@ -2592,7 +2594,7 @@ msgstr "Lägg till visningsbegränsning"
 
 #: cps/templates/modal_dialogs.html:50
 msgid "This book format will be permanently erased from database"
-msgstr ""
+msgstr "Detta bokformat tas bort permanent från databasen"
 
 #: cps/templates/modal_dialogs.html:51
 msgid "This book will be permanently erased from database"
@@ -2604,40 +2606,39 @@ msgstr "och från hårddisken"
 
 #: cps/templates/modal_dialogs.html:56
 msgid "Important Kobo Note: deleted books will remain on any paired Kobo device."
-msgstr ""
+msgstr "Viktigt Kobo-notering: borttagna böcker kommer att finnas kvar på alla kopplade Kobo-enheter."
 
 #: cps/templates/modal_dialogs.html:57
 msgid "Books must first be archived and the device synced before a book can safely be deleted."
-msgstr ""
+msgstr "Böcker måste först arkiveras och enheten synkroniseras innan en bok säkert kan tas bort."
 
 #: cps/templates/modal_dialogs.html:76
 msgid "Choose File Location"
-msgstr ""
+msgstr "Välj filplats"
 
 #: cps/templates/modal_dialogs.html:82
 msgid "type"
-msgstr ""
+msgstr "typ"
 
 #: cps/templates/modal_dialogs.html:83
 msgid "name"
-msgstr ""
+msgstr "namn"
 
 #: cps/templates/modal_dialogs.html:84
 msgid "size"
-msgstr ""
+msgstr "storlek"
 
 #: cps/templates/modal_dialogs.html:90
 msgid "Parent Directory"
-msgstr ""
+msgstr "Föräldramapp"
 
 #: cps/templates/modal_dialogs.html:98
 msgid "Select"
-msgstr ""
+msgstr "Välj"
 
 #: cps/templates/modal_dialogs.html:134
-#, fuzzy
 msgid "Ok"
-msgstr "Bok"
+msgstr "Ok"
 
 #: cps/templates/osd.xml:5
 msgid "Calibre-Web eBook Catalog"
@@ -2801,7 +2802,7 @@ msgstr "Publiceringsdatum till"
 
 #: cps/templates/search_form.html:35
 msgid "Read Status"
-msgstr ""
+msgstr "Lässtatus"
 
 #: cps/templates/search_form.html:52
 msgid "Exclude Tags"
@@ -2812,9 +2813,8 @@ msgid "Exclude Series"
 msgstr "Uteslut serier"
 
 #: cps/templates/search_form.html:88
-#, fuzzy
 msgid "Exclude Shelves"
-msgstr "Uteslut serier"
+msgstr "Uteslut hyllor"
 
 #: cps/templates/search_form.html:108
 msgid "Exclude Languages"
@@ -2836,25 +2836,33 @@ msgstr "Betyg större än"
 msgid "Rating Below"
 msgstr "Betyg mindre än"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Ta bort den här hyllan"
 
 #: cps/templates/shelf.html:11
 msgid "Edit Shelf Properties"
-msgstr ""
+msgstr "Redigera hyllegenskaper"
 
 #: cps/templates/shelf.html:13
 msgid "Arrange books manually"
-msgstr ""
+msgstr "Ordna böcker manuellt"
 
 #: cps/templates/shelf.html:14
 msgid "Disable Change order"
-msgstr ""
+msgstr "Inaktivera ändring av ordning"
 
 #: cps/templates/shelf.html:14
 msgid "Enable Change order"
-msgstr ""
+msgstr "Aktivera ändring av ordning"
 
 #: cps/templates/shelf.html:93
 msgid "Shelf will be deleted for all users"
@@ -2894,7 +2902,7 @@ msgstr "Serier i detta bibliotek"
 
 #: cps/templates/stats.html:29
 msgid "System Statistics"
-msgstr ""
+msgstr "Systemstatistik"
 
 #: cps/templates/stats.html:33
 msgid "Program Library"
@@ -2978,96 +2986,81 @@ msgstr "Skapa Kobo Auth URL"
 
 #: cps/templates/user_table.html:68 cps/templates/user_table.html:91
 msgid "Select..."
-msgstr ""
+msgstr "Välj..."
 
 #: cps/templates/user_table.html:118
-#, fuzzy
 msgid "Edit User"
-msgstr "Adminstratör användare"
+msgstr "Redigera användare"
 
 #: cps/templates/user_table.html:121
-#, fuzzy
 msgid "Enter Username"
-msgstr "Välj ett användarnamn"
+msgstr "Ange användarnamn"
 
 #: cps/templates/user_table.html:122
-#, fuzzy
 msgid "Enter E-mail Address"
-msgstr "Din e-postadress"
+msgstr "Ange e-postadress"
 
 #: cps/templates/user_table.html:123
-#, fuzzy
 msgid "Enter Kindle E-mail Address"
-msgstr "Kindle"
+msgstr "Ange Kindle e-postadress"
 
 #: cps/templates/user_table.html:123
-#, fuzzy
 msgid "Kindle E-mail"
-msgstr "Test e-post"
+msgstr "Kindle e-postadress"
 
 #: cps/templates/user_table.html:124
-#, fuzzy
 msgid "Locale"
-msgstr "Skala"
+msgstr "Språk"
 
 #: cps/templates/user_table.html:125
 msgid "Visible Book Languages"
-msgstr ""
+msgstr "Synliga bokspråk"
 
 #: cps/templates/user_table.html:126
-#, fuzzy
 msgid "Edit Denied Tags"
-msgstr "Välj tillåtna/avvisade taggar"
+msgstr "Redigera avvisade taggar"
 
 #: cps/templates/user_table.html:126
 msgid "Denied Tags"
-msgstr ""
+msgstr "Avvisade taggar"
 
 #: cps/templates/user_table.html:127
-#, fuzzy
 msgid "Edit Allowed Tags"
-msgstr "Välj tillåtna/avvisade taggar"
+msgstr "Redigera tillåtna taggar"
 
 #: cps/templates/user_table.html:127
 msgid "Allowed Tags"
-msgstr ""
+msgstr "Tillåtna taggar"
 
 #: cps/templates/user_table.html:128
-#, fuzzy
 msgid "Edit Allowed Column Values"
-msgstr "Lägg till tillåtna/avvisade anpassade kolumnvärden"
+msgstr "Redigera tillåtna kolumnvärden"
 
 #: cps/templates/user_table.html:128
-#, fuzzy
 msgid "Allowed Column Values"
-msgstr "Lägg till tillåtna/avvisade anpassade kolumnvärden"
+msgstr "Tillåtna kolumnvärden"
 
 #: cps/templates/user_table.html:129
-#, fuzzy
 msgid "Edit Denied Column Values"
-msgstr "Lägg till tillåtna/avvisade anpassade kolumnvärden"
+msgstr "Redigera avvisade kolumnvärden"
 
 #: cps/templates/user_table.html:129
-#, fuzzy
 msgid "Denied Columns Values"
-msgstr "Lägg till tillåtna/avvisade anpassade kolumnvärden"
+msgstr "Avvisade kolumnvärden"
 
 #: cps/templates/user_table.html:131
-#, fuzzy
 msgid "Change Password"
-msgstr "Tillåt Ändra lösenord"
+msgstr "Ändra lösenord"
 
 #: cps/templates/user_table.html:134
 msgid "View"
-msgstr ""
+msgstr "Visa"
 
 #: cps/templates/user_table.html:137
-#, fuzzy
 msgid "Edit Public Shelfs"
-msgstr "Redigera en hylla"
+msgstr "Redigera publika hyllor"
 
 #: cps/templates/user_table.html:140
-#, fuzzy
 msgid "Show read/unread selection"
-msgstr "Visa serieval"
+msgstr "Visa läst/oläst val"
 
diff --git a/cps/translations/tr/LC_MESSAGES/messages.mo b/cps/translations/tr/LC_MESSAGES/messages.mo
index 5cb10f11..a33e1638 100644
Binary files a/cps/translations/tr/LC_MESSAGES/messages.mo and b/cps/translations/tr/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/tr/LC_MESSAGES/messages.po b/cps/translations/tr/LC_MESSAGES/messages.po
index 1bd45534..f78f3b89 100644
--- a/cps/translations/tr/LC_MESSAGES/messages.po
+++ b/cps/translations/tr/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-04-23 22:47+0300\n"
 "Last-Translator: iz <iz7iz7iz@protonmail.ch>\n"
 "Language: tr\n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -46,9 +46,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Bilinmeyen"
@@ -70,7 +70,7 @@ msgstr ""
 msgid "all"
 msgstr "Tümü"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -87,7 +87,7 @@ msgstr ""
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -95,7 +95,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -131,301 +131,309 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Calibre-Web yapılandırması güncellendi"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr ""
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Temel Ayarlar"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Lütfen tüm alanları doldurun!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "E-posta izin verilen bir servisten değil"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Yeni kullanıcı ekle"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "'%(user)s' kullanıcısı oluşturuldu"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "Bu e-posta adresi veya kullanıcı adı için zaten bir hesap var."
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Kullanıcı '%(nick)s' silindi"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "Başka yönetici kullanıcı olmadığından silinemedi"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "%(nick)s kullanıcısını düzenle"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "'%(nick)s' kullanıcısı güncellendi"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Bilinmeyen bir hata oluştu."
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr ""
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "Deneme e-postası gönderilirken bir hata oluştu: %(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "Lütfen önce e-posta adresinizi ayarlayın..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "E-posta sunucusu ayarları güncellendi"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "%(user)s kullanıcısının şifresi sıfırlandı"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "Bilinmeyen bir hata oluştu. Lütfen daha sonra tekrar deneyiniz."
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Lütfen önce SMTP e-posta ayarlarını ayarlayın..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "Log dosyası görüntüleyici"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Güncelleme paketi isteniyor"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Güncelleme paketi indiriliyor"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Güncelleme paketi ayıklanıyor"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "Dosyalar değiştiriliyor"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "Veritabanı bağlantıları kapalı"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "Sunucu durduruyor"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Güncelleme tamamlandı, sayfayı yenilemek için lütfen Tamam'a tıklayınız"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "Güncelleme başarısız:"
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP Hatası"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "Bağlantı hatası"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "Bağlantı kurulmaya çalışırken zaman aşımına uğradı"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "Genel hata"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -437,6 +445,11 @@ msgstr "ayarlanmadı"
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -445,8 +458,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "eKitap açılırken hata oluştu. Dosya mevcut değil veya erişilemiyor"
 
@@ -459,76 +472,76 @@ msgstr "metaveri düzenle"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s geçerli bir dil değil"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "'%(ext)s' uzantılı dosyaların bu sunucuya yüklenmesine izin verilmiyor"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Yüklenecek dosyanın mutlaka bir uzantısı olması gerekli"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "%(path)s dizini oluşturulamadı. (İzin reddedildi)"
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "%(file)s dosyası kaydedilemedi."
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "%(book)s kitabına %(ext)s dosya biçimi eklendi"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "Metaveri başarıyla güncellendi"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "eKitap düzenlenirken hata oluştu, detaylar için lütfen log dosyasını kontrol edin"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "Yüklenen eKitap muhtemelen kitaplıkta zaten var. Yenisini yüklemeden değiştirmeyi düşünün: "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "%(filename)s dosyası geçici dizine kaydedilemedi"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "%(file)s dosyası yüklendi"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "Dönüştürme için kaynak ya da hedef biçimi eksik"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "eKitap %(book_format)s formatlarına dönüştürülmek üzere başarıyla sıraya alındı"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "Bu eKitabı dönüştürürken bir hata oluştu: %(res)s"
@@ -714,7 +727,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr "%(provider)s ile Kaydol"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "giriş yaptınız: '%(nickname)s'"
@@ -784,7 +797,7 @@ msgstr "Tümü"
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "giriş"
 
@@ -800,7 +813,7 @@ msgstr "Token süresi doldu"
 msgid "Success! Please return to your device"
 msgstr "Başarılı! Lütfen cihazınıza dönün"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "eKitaplar"
 
@@ -825,7 +838,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr ""
 
@@ -834,7 +847,7 @@ msgid "Show Top Rated Books"
 msgstr ""
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Okunanlar"
 
@@ -843,7 +856,7 @@ msgid "Show read and unread"
 msgstr "Okunan ve okunmayanları göster"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Okunmamışlar"
 
@@ -861,7 +874,7 @@ msgid "Show random books"
 msgstr "Rastgele eKitap göster"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Kategoriler"
 
@@ -871,7 +884,7 @@ msgstr "Kategori seçimini göster"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Seriler"
 
@@ -889,7 +902,7 @@ msgid "Show author selection"
 msgstr "Yazar seçimini göster"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "Yayıncılar"
 
@@ -899,7 +912,7 @@ msgstr "Yayıncı seçimini göster"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Diller"
 
@@ -923,7 +936,7 @@ msgstr "Biçimler"
 msgid "Show file formats selection"
 msgstr "Dosya biçimi seçimini göster"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -931,7 +944,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1063,190 +1076,185 @@ msgstr "Yeni bir güncelleme mevcut. Son sürüme güncellemek için aşağıdak
 msgid "No release information available"
 msgstr "Sürüm bilgisi mevcut değil"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Keşfet (Rastgele)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr ""
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr ""
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "Yazar: %(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "Yayınevi: %(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Seri: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "Değerlendirme: %(rating)s yıldız"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "Biçim: %(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Kategori: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Dil: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Gelişmiş Arama"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Ara"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr ""
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "Değerlendirme listesi"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "Biçim listesi"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "Görevler"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "Yayınlanma (sonra)"
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Yayınlanma (önce)"
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "Değerlendirme <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "Değerlendirme >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "%(kindlemail)s'a gönderilmek üzere başarıyla sıraya alındı"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr ""
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr ""
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "E-Posta sunucusu ayarlanmadı, lütfen yöneticinizle iletişime geçin!"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "kaydol"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "E-posta adresinizle kaydolunmasına izin verilmiyor"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "Onay e-Postası hesabınıza gönderildi."
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "LDAP Kimlik Doğrulaması etkinleştirilemiyor"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Yanlış Kullanıcı adı ya da Şifre"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "Yeni şifre e-Posta adresinize gönderildi"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "Şifrenizi sıfırlayabilmek için lütfen geçerli bir kullanıcı adı giriniz"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "Giriş yaptınız: '%(nickname)s'"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s Profili"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Profil güncellendi"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "Bu e-posta adresi için bir hesap mevcut."
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Kitap Oku"
 
@@ -1503,7 +1511,7 @@ msgid "OK"
 msgstr ""
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1601,13 +1609,13 @@ msgstr "eKitabı dönüştür"
 msgid "Book Title"
 msgstr "Kitap Adı"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Yazar"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Açıklama"
 
@@ -1615,15 +1623,15 @@ msgstr "Açıklama"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1656,8 +1664,8 @@ msgstr ""
 msgid "Published Date"
 msgstr ""
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Yayınevi"
@@ -1677,56 +1685,56 @@ msgstr "Evet"
 msgid "No"
 msgstr "Hayır"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr ""
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr ""
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Anahtar Kelime"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr "Anahtar kelime ara"
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Forma metaveri yüklemek için kapağa tıklayın"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Yükleniyor..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Kapak"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Kaynak"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Arama hatası!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr ""
 
@@ -2251,45 +2259,45 @@ msgstr "için"
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "Okunmadı olarak işaretle"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "Okundu olarak işaretle"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Okudum"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Açıklama:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Kitaplığa ekle"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr ""
 
@@ -2833,6 +2841,14 @@ msgstr ""
 msgid "Rating Below"
 msgstr ""
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Bu Kitaplığı sil"
diff --git a/cps/translations/uk/LC_MESSAGES/messages.mo b/cps/translations/uk/LC_MESSAGES/messages.mo
index cc239d65..2d6c1d5c 100644
Binary files a/cps/translations/uk/LC_MESSAGES/messages.mo and b/cps/translations/uk/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/uk/LC_MESSAGES/messages.po b/cps/translations/uk/LC_MESSAGES/messages.po
index f1473f61..1781850f 100644
--- a/cps/translations/uk/LC_MESSAGES/messages.po
+++ b/cps/translations/uk/LC_MESSAGES/messages.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-web\n"
 "Report-Msgid-Bugs-To: https://github.com/janeczku/calibre-web\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2017-04-30 00:47+0300\n"
 "Last-Translator: ABIS Team <biblio.if.abis@gmail.com>\n"
 "Language: uk\n"
@@ -15,7 +15,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -45,9 +45,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "Невідомий"
@@ -69,7 +69,7 @@ msgstr "Керування сервером"
 msgid "all"
 msgstr ""
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -86,7 +86,7 @@ msgstr "Показати всі"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -94,7 +94,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -130,302 +130,310 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr ""
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "Ви справді хочете видалити книжкову полицю?"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 #, fuzzy
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "Ви справді хочете видалити книжкову полицю?"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 #, fuzzy
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "Ви справді хочете видалити книжкову полицю?"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "Настройки сервера"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "Будь-ласка, заповніть всі поля!"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr ""
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "Додати користувача"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "Користувач '%(user)s' додан"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 msgid "Found an existing account for this e-mail address or name."
 msgstr ""
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "Користувача '%(nick)s' видалено"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr ""
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "Змінити користувача %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "Користувача '%(nick)s' оновлено"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "Сталась невідома помилка"
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "Змінити налаштування SMTP"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr ""
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr ""
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr ""
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr ""
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr ""
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "Будь-ласка, спочатку сконфігуруйте параметри SMTP"
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr ""
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "Перевірка оновлень"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "Завантаження оновлень"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "Розпакування оновлення"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr ""
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "З'єднання з базою даних закрите"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr ""
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "Оновлення встановлені, натисніть ok і перезавантажте сторінку"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr ""
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr ""
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr ""
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr ""
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr ""
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -437,6 +445,11 @@ msgstr ""
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -445,8 +458,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "Сталась помилка при відкриванні eBook. Файл не існує або відсутній доступ до нього"
 
@@ -459,76 +472,76 @@ msgstr "змінити метадані"
 msgid "%(langname)s is not a valid language"
 msgstr ""
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr ""
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "Завантажувальний файл повинен мати розширення"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr ""
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr ""
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr ""
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr ""
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "Сталась помилка при редагуванні книги. Будь-ласка, перевірте лог-файл для деталей"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr ""
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr ""
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr ""
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr ""
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr ""
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr ""
@@ -713,7 +726,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr ""
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "Ви увійшли як користувач: '%(nickname)s'"
@@ -783,7 +796,7 @@ msgstr ""
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "увійти"
 
@@ -799,7 +812,7 @@ msgstr "Час дії токено вичерпано"
 msgid "Success! Please return to your device"
 msgstr "Вдалося! Будь-ласка, поверніться до вашого пристрою"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr ""
 
@@ -824,7 +837,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "Книги з найкращим рейтингом"
 
@@ -833,7 +846,7 @@ msgid "Show Top Rated Books"
 msgstr "Показувати книги з найвищим рейтингом"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "Прочитані книги"
 
@@ -842,7 +855,7 @@ msgid "Show read and unread"
 msgstr "Показувати прочитані та непрочитані книги"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "Непрочитані книги"
 
@@ -860,7 +873,7 @@ msgid "Show random books"
 msgstr "Показувати випадкові книги"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "Категорії"
 
@@ -870,7 +883,7 @@ msgstr "Показувати вибір категорії"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "Серії"
 
@@ -888,7 +901,7 @@ msgid "Show author selection"
 msgstr "Показувати вибір автора"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr ""
 
@@ -898,7 +911,7 @@ msgstr ""
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "Мови"
 
@@ -922,7 +935,7 @@ msgstr ""
 msgid "Show file formats selection"
 msgstr ""
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -930,7 +943,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1062,190 +1075,185 @@ msgstr ""
 msgid "No release information available"
 msgstr ""
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "Огляд (випадкові книги)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "Популярні книги (найбільш завантажувані)"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "Неможливо відкрити книгу. Файл не існує або немає доступу."
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr ""
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr ""
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "Серії: %(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr ""
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr ""
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "Категорія: %(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "Мова: %(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "Розширений пошук"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "Пошук"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "DLS"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr ""
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr ""
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr ""
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr ""
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "Опубліковано до"
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr ""
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr ""
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr ""
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "Помилка при відправці книги: %(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr ""
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr ""
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "зареєструватись"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr ""
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr ""
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr ""
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "Помилка в імені користувача або паролі"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr ""
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr ""
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr ""
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "Профіль %(name)s"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "Профіль оновлено"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr ""
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "Читати книгу"
 
@@ -1502,7 +1510,7 @@ msgid "OK"
 msgstr "Ok"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1600,13 +1608,13 @@ msgstr ""
 msgid "Book Title"
 msgstr "Назва книги"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "Автор"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "Опис"
 
@@ -1614,15 +1622,15 @@ msgstr "Опис"
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1655,8 +1663,8 @@ msgstr ""
 msgid "Published Date"
 msgstr "Опубліковано"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "Видавець"
@@ -1676,56 +1684,56 @@ msgstr "Так"
 msgid "No"
 msgstr "Ні"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "Формат завантаження"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "переглянути книгу після редагування"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "Отримати метадані"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "Ключове слово"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " Пошук по ключовому слову"
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "Натисніть на обкладинку, щоб отримати метадані"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "Завантаження..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "Закрити"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "Джерело"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "Помилка пошуку!"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr ""
 
@@ -2250,45 +2258,45 @@ msgstr "з"
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr ""
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "Прочитано"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "Опис:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "Додати на книжкову полицю"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "Редагувати метадані"
 
@@ -2832,6 +2840,14 @@ msgstr ""
 msgid "Rating Below"
 msgstr ""
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "Видалити цю книжкову полицю"
diff --git a/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.mo b/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.mo
index 43468ca1..03236456 100644
Binary files a/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.mo and b/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.mo differ
diff --git a/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.po b/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.po
index 50fc7324..fb0cf966 100644
--- a/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.po
+++ b/cps/translations/zh_Hans_CN/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version:  Calibre-Web\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: 2020-09-27 22:18+0800\n"
 "Last-Translator: dalin <dalin.lin@gmail.com>\n"
 "Language: zh_CN\n"
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -46,9 +46,9 @@ msgstr "重新连接成功"
 msgid "Unknown command"
 msgstr "未知命令"
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr "未知"
@@ -71,7 +71,7 @@ msgstr "管理员用户"
 msgid "all"
 msgstr "全部"
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr "找不到用户"
 
@@ -88,7 +88,7 @@ msgstr "显示全部"
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr "访客名称无法更改"
 
@@ -96,7 +96,7 @@ msgstr "访客名称无法更改"
 msgid "Guest can't have this role"
 msgstr "游客无法拥有此角色"
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr "理员账户不存在，无法删除管理员角色"
 
@@ -132,301 +132,309 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr "Calibre-Web配置已更新"
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr "您确定删除Kobo Token吗？"
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr "您确定要删除此域吗？"
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr "您确定要删除此用户吗？"
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr "您确定要删除此书架吗？"
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr "您确定要修改选定用户的本地化设置吗？"
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr "您确定要修改选定用户的可见书籍语言吗？"
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr "您确定要修改选定用户的选定角色吗？"
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr "您确定要修改选定用户的选定限制吗？"
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr "您确定要修改选定用户的选定可视化限制吗？"
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr "拒绝"
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr "允许"
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr "client_secrets.json 未为 Web 应用程序配置"
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "日志文件路径无效，请输入正确的路径"
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr "访问日志路径无效，请输入正确的路径"
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr "请输入LDAP主机、端口、DN和用户对象标识符"
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP组对象过滤器需要一个具有“%s”格式标识符"
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr "LDAP组对象过滤器的括号不匹配"
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr "LDAP用户对象过滤器需要一个具有“%s”格式标识符"
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr "LDAP用户对象过滤器的括号不匹配"
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr "密钥文件路径无效，请输入正确的路径"
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr "证书文件路径无效，请输入正确的路径"
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr "设置数据库不可写入"
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr "数据库路径无效，请输入正确的路径"
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr "数据库不可写入"
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr "基本配置"
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr "请填写所有字段！"
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr "邮箱不在有效域中"
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr "添加新用户"
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr "用户“%(user)s”已创建"
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 #, fuzzy
 msgid "Found an existing account for this e-mail address or name."
 msgstr "此邮箱或用户名的账号已经存在。"
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr "用户“%(nick)s”已删除"
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr "无法删除游客用户"
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr "管理员账户不存在，无法删除用户"
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr "编辑用户 %(nick)s"
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr "用户“%(nick)s”已更新"
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 #, fuzzy
 msgid "An unknown error occurred."
 msgstr "发生未知错误。"
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr "编辑邮件服务器设置"
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr "G-Mail账号校验成功"
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr "发送测试邮件时出错：%(res)s"
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr "请先配置您的邮箱地址..."
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr "邮件服务器设置已更新"
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr "用户 %(user)s 的密码已重置"
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr "发生一个未知错误，请稍后再试。"
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr "请先配置SMTP邮箱设置..."
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr "日志文件查看器"
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr "正在请求更新包"
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr "正在下载更新包"
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr "正在解压更新包"
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr "正在替换文件"
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr "数据库连接已关闭"
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr "正在停止服务器"
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr "更新完成，请点击确定并刷新页面"
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr "更新失败："
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr "HTTP错误"
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr "连接错误"
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr "建立连接超时"
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr "一般错误"
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr "更新文件无法保存在临时目录中"
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr "创建至少一个LDAP用户失败"
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr "错误：%(ldaperror)s"
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr "错误：在LDAP服务器的响应中没有返回用户"
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr "数据库中没有找到至少一个LDAP用户"
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr "{} 用户被成功导入"
 
@@ -438,6 +446,11 @@ msgstr "未配置"
 msgid "Execution permissions missing"
 msgstr "缺少执行权限"
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr "自定义列号：%(column)d在Calibre数据库中不存在"
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr "书籍格式已成功删除"
@@ -446,8 +459,8 @@ msgstr "书籍格式已成功删除"
 msgid "Book Successfully Deleted"
 msgstr "书籍已成功删除"
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr "打开电子书出错。文件不存在或不可访问"
 
@@ -460,76 +473,76 @@ msgstr "编辑元数据"
 msgid "%(langname)s is not a valid language"
 msgstr "%(langname)s 不是一种有效语言"
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr "不能上传文件扩展名为“%(ext)s”的文件到此服务器"
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr "要上传的文件必须具有扩展名"
 
-#: cps/editbooks.py:611
+#: cps/editbooks.py:616
 #, python-format
 msgid "Failed to create path %(path)s (Permission denied)."
 msgstr "创建路径 %(path)s 失败(权限拒绝)。"
 
-#: cps/editbooks.py:616
+#: cps/editbooks.py:621
 #, python-format
 msgid "Failed to store file %(file)s."
 msgstr "保存文件 %(file)s 失败。"
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr "数据库错误：%(error)s。"
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr "已添加 %(ext)s 格式到 %(book)s"
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr "标识符不区分大小写，覆盖旧标识符"
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr "已成功更新元数据"
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr "编辑书籍出错，请检查日志文件以获取详细信息"
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr "上传的书籍可能已经存在，建议修改后重新上传： "
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr "文件 %(filename)s 无法保存到临时目录"
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr "移动封面文件失败 %(file)s：%(error)s"
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr "文件 %(file)s 已上传"
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr "转换的源或目的格式缺失"
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr "书籍已经被成功加入到 %(book_format)s 格式转换队列"
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr "转换此书籍时出现错误： %(res)s"
@@ -715,7 +728,7 @@ msgstr "Kobo 设置"
 msgid "Register with %(provider)s"
 msgstr "使用 %(provider)s 注册"
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr "您现在已以“%(nickname)s”身份登录"
@@ -785,7 +798,7 @@ msgstr "全部"
 msgid "{} Stars"
 msgstr "{} 星"
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr "登录"
 
@@ -801,7 +814,7 @@ msgstr "Token已过期"
 msgid "Success! Please return to your device"
 msgstr "成功！请返回您的设备"
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr "书籍"
 
@@ -826,7 +839,7 @@ msgstr "下载历史"
 msgid "Show Downloaded Books"
 msgstr "显示下载过的书籍"
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr "最高评分书籍"
 
@@ -835,7 +848,7 @@ msgid "Show Top Rated Books"
 msgstr "显示最高评分书籍"
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr "已读书籍"
 
@@ -844,7 +857,7 @@ msgid "Show read and unread"
 msgstr "显示阅读状态"
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr "未读书籍"
 
@@ -862,7 +875,7 @@ msgid "Show random books"
 msgstr "显示随机书籍"
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr "分类"
 
@@ -872,7 +885,7 @@ msgstr "显示分类选择"
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr "丛书"
 
@@ -890,7 +903,7 @@ msgid "Show author selection"
 msgstr "显示作者选择"
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr "出版社"
 
@@ -900,7 +913,7 @@ msgstr "显示出版社选择"
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr "语言"
 
@@ -924,7 +937,7 @@ msgstr "文件格式"
 msgid "Show file formats selection"
 msgstr "显示文件格式选择"
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr "归档书籍"
 
@@ -932,7 +945,7 @@ msgstr "归档书籍"
 msgid "Show archived books"
 msgstr "显示归档书籍"
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr "书籍列表"
 
@@ -1064,190 +1077,185 @@ msgstr "有新的更新。单击下面的按钮以更新到版本: %(version)s"
 msgid "No release information available"
 msgstr "无可用发布信息"
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr "发现(随机书籍)"
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr "热门书籍（最多下载）"
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr "%(user)s 下载过的书籍"
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr "糟糕！选择书名无法打开。文件不存在或者文件不可访问"
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr "作者：%(name)s"
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr "出版社：%(name)s"
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr "丛书：%(serie)s"
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr "评分：%(rating)s 星"
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr "文件格式：%(format)s"
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr "分类：%(name)s"
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr "语言：%(name)s"
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr "自定义列号：%(column)d在Calibre数据库中不存在"
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr "高级搜索"
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr "搜索"
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr "下载次数"
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr "评分列表"
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr "文件格式列表"
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr "任务列表"
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr "出版时间晚于 "
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr "出版时间早于 "
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr "评分 <= %(rating)s"
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr "评分 >= %(rating)s"
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr "书籍已经成功加入 %(kindlemail)s 的发送队列"
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr "糟糕！发送这本书籍的时候出现错误：%(res)s"
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr "请先配置您的kindle邮箱。"
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr "邮件服务未配置，请联系网站管理员！"
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr "注册"
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr "您的电子邮件不允许注册"
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr "确认邮件已经发送到您的邮箱。"
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr "无法激活LDAP认证"
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr "后备登录“%(nickname)s”：无法访问LDAP服务器，或用户未知"
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr "无法登录：%(message)s"
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr "用户名或密码错误"
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr "新密码已发送到您的邮箱"
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr "请输入有效的用户名进行密码重置"
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr "您现在已以“%(nickname)s”登录"
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr "%(name)s 的用户配置"
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr "资料已更新"
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr "此邮箱的账号已经存在。"
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr "阅读一本书"
 
@@ -1504,7 +1512,7 @@ msgid "OK"
 msgstr "确定"
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1602,13 +1610,13 @@ msgstr "转换书籍"
 msgid "Book Title"
 msgstr "书名"
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr "作者"
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr "简介"
 
@@ -1616,15 +1624,15 @@ msgstr "简介"
 msgid "Identifiers"
 msgstr "书号"
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr "书号类型"
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr "书号编号"
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr "移除"
@@ -1657,8 +1665,8 @@ msgstr "从本地磁盘上传封面"
 msgid "Published Date"
 msgstr "出版日期"
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr "出版社"
@@ -1678,56 +1686,56 @@ msgstr "确认"
 msgid "No"
 msgstr "没有"
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr "上传格式"
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr "查看保存书籍"
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr "获取元数据"
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr "保存"
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr "关键字"
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr " 搜索关键字 "
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr "单击封面将元数据加载到表单"
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr "加载中..."
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr "关闭"
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr "源"
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr "搜索错误！"
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr "无搜索结果！请尝试另一个关键字。"
 
@@ -2252,45 +2260,45 @@ msgstr "在"
 msgid "Published"
 msgstr "出版日期"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr "标为未读"
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr "标为已读"
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr "已读"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr "从档案还原"
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr "添加到归档"
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr "归档"
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr "简介:"
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr "添加到书架"
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr "(公共)"
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr "编辑元数据"
 
@@ -2833,6 +2841,14 @@ msgstr "评分大于"
 msgid "Rating Below"
 msgstr "评分小于"
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr "删除此书架"
diff --git a/cps/web.py b/cps/web.py
index adf0d51e..12f3058b 100644
--- a/cps/web.py
+++ b/cps/web.py
@@ -1067,8 +1067,8 @@ def search():
 @login_required_if_no_ano
 def advanced_search():
     values = dict(request.form)
-    params = ['include_tag', 'exclude_tag', 'include_serie', 'exclude_serie', 'include_shelf','exclude_shelf','include_language',
-              'exclude_language', 'include_extension', 'exclude_extension']
+    params = ['include_tag', 'exclude_tag', 'include_serie', 'exclude_serie', 'include_shelf', 'exclude_shelf',
+              'include_language', 'exclude_language', 'include_extension', 'exclude_extension']
     for param in params:
         values[param] = list(request.form.getlist(param))
     flask_session['query'] = json.dumps(values)
@@ -1077,20 +1077,30 @@ def advanced_search():
 
 def adv_search_custom_columns(cc, term, q):
     for c in cc:
-        custom_query = term.get('custom_column_' + str(c.id))
-        if custom_query != '' and custom_query is not None:
-            if c.datatype == 'bool':
+        if c.datatype == "datetime":
+            custom_start = term.get('custom_column_' + str(c.id) + '_start')
+            custom_end = term.get('custom_column_' + str(c.id) + '_end')
+            if custom_start:
                 q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
-                    db.cc_classes[c.id].value == (custom_query == "True")))
-            elif c.datatype == 'int' or c.datatype == 'float':
+                    db.cc_classes[c.id].value >= custom_start))
+            if custom_end:
                 q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
-                    db.cc_classes[c.id].value == custom_query))
-            elif c.datatype == 'rating':
-                q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
-                    db.cc_classes[c.id].value == int(float(custom_query) * 2)))
-            else:
-                q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
-                    func.lower(db.cc_classes[c.id].value).ilike("%" + custom_query + "%")))
+                    db.cc_classes[c.id].value <= custom_end))
+        else:
+            custom_query = term.get('custom_column_' + str(c.id))
+            if custom_query != '' and custom_query is not None:
+                if c.datatype == 'bool':
+                    q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
+                        db.cc_classes[c.id].value == (custom_query == "True")))
+                elif c.datatype == 'int' or c.datatype == 'float':
+                    q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
+                        db.cc_classes[c.id].value == custom_query))
+                elif c.datatype == 'rating':
+                    q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
+                        db.cc_classes[c.id].value == int(float(custom_query) * 2)))
+                else:
+                    q = q.filter(getattr(db.Books, 'custom_column_' + str(c.id)).any(
+                        func.lower(db.cc_classes[c.id].value).ilike("%" + custom_query + "%")))
     return q
 
 
@@ -1262,10 +1272,20 @@ def render_adv_search_results(term, offset=None, order=None, limit=None):
     searchterm = []
     cc_present = False
     for c in cc:
-        if term.get('custom_column_' + str(c.id)):
-            searchterm.extend([(u"%s: %s" % (c.name, term.get('custom_column_' + str(c.id))))])
+        if c.datatype == "datetime":
+            column_start = term.get('custom_column_' + str(c.id) + '_start')
+            column_end = term.get('custom_column_' + str(c.id) + '_end')
+            if column_start:
+                searchterm.extend([u"{} >= {}".format(c.name, column_start)])
+                cc_present = True
+            if column_end:
+                searchterm.extend([u"{} <= {}".format(c.name, column_end)])
+                cc_present = True
+        elif term.get('custom_column_' + str(c.id)):
+            searchterm.extend([(u"{}: {}".format(c.name, term.get('custom_column_' + str(c.id))))])
             cc_present = True
 
+
     if any(tags.values()) or author_name or book_title or publisher or pub_start or pub_end or rating_low \
        or rating_high or description or cc_present or read_status:
         searchterm, pub_start, pub_end = extend_search_term(searchterm,
diff --git a/messages.pot b/messages.pot
index 284462a2..18c81703 100644
--- a/messages.pot
+++ b/messages.pot
@@ -8,14 +8,14 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-05-01 16:33+0200\n"
+"POT-Creation-Date: 2021-05-13 16:26+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.8.0\n"
+"Generated-By: Babel 2.9.0\n"
 
 #: cps/about.py:43
 msgid "installed"
@@ -45,9 +45,9 @@ msgstr ""
 msgid "Unknown command"
 msgstr ""
 
-#: cps/admin.py:174 cps/editbooks.py:668 cps/editbooks.py:682
-#: cps/editbooks.py:821 cps/editbooks.py:823 cps/editbooks.py:850
-#: cps/editbooks.py:866 cps/updater.py:555 cps/uploader.py:94
+#: cps/admin.py:174 cps/editbooks.py:673 cps/editbooks.py:687
+#: cps/editbooks.py:826 cps/editbooks.py:828 cps/editbooks.py:855
+#: cps/editbooks.py:871 cps/updater.py:555 cps/uploader.py:94
 #: cps/uploader.py:104
 msgid "Unknown"
 msgstr ""
@@ -68,7 +68,7 @@ msgstr ""
 msgid "all"
 msgstr ""
 
-#: cps/admin.py:315 cps/admin.py:1486
+#: cps/admin.py:315 cps/admin.py:1512
 msgid "User not found"
 msgstr ""
 
@@ -85,7 +85,7 @@ msgstr ""
 msgid "Malformed request"
 msgstr ""
 
-#: cps/admin.py:390 cps/admin.py:1368
+#: cps/admin.py:390 cps/admin.py:1394
 msgid "Guest Name can't be changed"
 msgstr ""
 
@@ -93,7 +93,7 @@ msgstr ""
 msgid "Guest can't have this role"
 msgstr ""
 
-#: cps/admin.py:412 cps/admin.py:1333
+#: cps/admin.py:412 cps/admin.py:1359
 msgid "No admin user remaining, can't remove admin role"
 msgstr ""
 
@@ -129,299 +129,307 @@ msgstr ""
 msgid "Parameter not found"
 msgstr ""
 
-#: cps/admin.py:506 cps/admin.py:1219
+#: cps/admin.py:507
+msgid "Invalid Read Column"
+msgstr ""
+
+#: cps/admin.py:513
+msgid "Invalid Restricted Column"
+msgstr ""
+
+#: cps/admin.py:532 cps/admin.py:1245
 msgid "Calibre-Web configuration updated"
 msgstr ""
 
-#: cps/admin.py:518
+#: cps/admin.py:544
 msgid "Do you really want to delete the Kobo Token?"
 msgstr ""
 
-#: cps/admin.py:520
+#: cps/admin.py:546
 msgid "Do you really want to delete this domain?"
 msgstr ""
 
-#: cps/admin.py:522
+#: cps/admin.py:548
 msgid "Do you really want to delete this user?"
 msgstr ""
 
-#: cps/admin.py:524 cps/templates/shelf.html:90
+#: cps/admin.py:550 cps/templates/shelf.html:90
 msgid "Are you sure you want to delete this shelf?"
 msgstr ""
 
-#: cps/admin.py:526
+#: cps/admin.py:552
 msgid "Are you sure you want to change locales of selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:528
+#: cps/admin.py:554
 msgid "Are you sure you want to change visible book languages for selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:530
+#: cps/admin.py:556
 msgid "Are you sure you want to change the selected role for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:532
+#: cps/admin.py:558
 msgid "Are you sure you want to change the selected restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:534
+#: cps/admin.py:560
 msgid "Are you sure you want to change the selected visibility restrictions for the selected user(s)?"
 msgstr ""
 
-#: cps/admin.py:683
+#: cps/admin.py:709
 msgid "Tag not found"
 msgstr ""
 
-#: cps/admin.py:695
+#: cps/admin.py:721
 msgid "Invalid Action"
 msgstr ""
 
-#: cps/admin.py:800 cps/admin.py:806 cps/admin.py:816 cps/admin.py:826
+#: cps/admin.py:826 cps/admin.py:832 cps/admin.py:842 cps/admin.py:852
 #: cps/templates/modal_dialogs.html:29 cps/templates/user_table.html:43
 msgid "Deny"
 msgstr ""
 
-#: cps/admin.py:802 cps/admin.py:808 cps/admin.py:818 cps/admin.py:828
+#: cps/admin.py:828 cps/admin.py:834 cps/admin.py:844 cps/admin.py:854
 #: cps/templates/modal_dialogs.html:28 cps/templates/user_table.html:48
 msgid "Allow"
 msgstr ""
 
-#: cps/admin.py:971
+#: cps/admin.py:997
 msgid "client_secrets.json Is Not Configured For Web Application"
 msgstr ""
 
-#: cps/admin.py:1016
+#: cps/admin.py:1042
 msgid "Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1022
+#: cps/admin.py:1048
 msgid "Access Logfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1052
+#: cps/admin.py:1078
 msgid "Please Enter a LDAP Provider, Port, DN and User Object Identifier"
 msgstr ""
 
-#: cps/admin.py:1067
+#: cps/admin.py:1093
 #, python-format
 msgid "LDAP Group Object Filter Needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1070
+#: cps/admin.py:1096
 msgid "LDAP Group Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1075
+#: cps/admin.py:1101
 #, python-format
 msgid "LDAP User Object Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1078
+#: cps/admin.py:1104
 msgid "LDAP User Object Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1086
+#: cps/admin.py:1112
 #, python-format
 msgid "LDAP Member User Filter needs to Have One \"%s\" Format Identifier"
 msgstr ""
 
-#: cps/admin.py:1089
+#: cps/admin.py:1115
 msgid "LDAP Member User Filter Has Unmatched Parenthesis"
 msgstr ""
 
-#: cps/admin.py:1097
+#: cps/admin.py:1123
 msgid "LDAP CACertificate, Certificate or Key Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1123
+#: cps/admin.py:1149
 msgid "Keyfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1129
+#: cps/admin.py:1155
 msgid "Certfile Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1200 cps/admin.py:1303 cps/admin.py:1395 cps/admin.py:1461
+#: cps/admin.py:1226 cps/admin.py:1329 cps/admin.py:1421 cps/admin.py:1487
 #: cps/shelf.py:103 cps/shelf.py:163 cps/shelf.py:206 cps/shelf.py:269
 #: cps/shelf.py:325 cps/shelf.py:360 cps/shelf.py:431
 msgid "Settings DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1212
+#: cps/admin.py:1238
 msgid "DB Location is not Valid, Please Enter Correct Path"
 msgstr ""
 
-#: cps/admin.py:1216
+#: cps/admin.py:1242
 msgid "DB is not Writeable"
 msgstr ""
 
-#: cps/admin.py:1256
+#: cps/admin.py:1282
 msgid "Basic Configuration"
 msgstr ""
 
-#: cps/admin.py:1272 cps/web.py:1417
+#: cps/admin.py:1298 cps/web.py:1445
 msgid "Please fill out all fields!"
 msgstr ""
 
-#: cps/admin.py:1280
+#: cps/admin.py:1306
 msgid "E-mail is not from valid domain"
 msgstr ""
 
-#: cps/admin.py:1284 cps/admin.py:1414
+#: cps/admin.py:1310 cps/admin.py:1440
 msgid "Add new user"
 msgstr ""
 
-#: cps/admin.py:1293
+#: cps/admin.py:1319
 #, python-format
 msgid "User '%(user)s' created"
 msgstr ""
 
-#: cps/admin.py:1299
+#: cps/admin.py:1325
 msgid "Found an existing account for this e-mail address or name."
 msgstr ""
 
-#: cps/admin.py:1312
+#: cps/admin.py:1338
 #, python-format
 msgid "User '%(nick)s' deleted"
 msgstr ""
 
-#: cps/admin.py:1314 cps/admin.py:1315
+#: cps/admin.py:1340 cps/admin.py:1341
 msgid "Can't delete Guest User"
 msgstr ""
 
-#: cps/admin.py:1318
+#: cps/admin.py:1344
 msgid "No admin user remaining, can't delete user"
 msgstr ""
 
-#: cps/admin.py:1383 cps/admin.py:1504
+#: cps/admin.py:1409 cps/admin.py:1530
 #, python-format
 msgid "Edit User %(nick)s"
 msgstr ""
 
-#: cps/admin.py:1387
+#: cps/admin.py:1413
 #, python-format
 msgid "User '%(nick)s' updated"
 msgstr ""
 
-#: cps/admin.py:1391
+#: cps/admin.py:1417
 msgid "An unknown error occurred."
 msgstr ""
 
-#: cps/admin.py:1423 cps/templates/admin.html:94
+#: cps/admin.py:1449 cps/templates/admin.html:94
 msgid "Edit E-mail Server Settings"
 msgstr ""
 
-#: cps/admin.py:1442
+#: cps/admin.py:1468
 msgid "G-Mail Account Verification Successful"
 msgstr ""
 
-#: cps/admin.py:1468
+#: cps/admin.py:1494
 #, python-format
 msgid "Test e-mail queued for sending to %(email)s, please check Tasks for result"
 msgstr ""
 
-#: cps/admin.py:1471
+#: cps/admin.py:1497
 #, python-format
 msgid "There was an error sending the Test e-mail: %(res)s"
 msgstr ""
 
-#: cps/admin.py:1473
+#: cps/admin.py:1499
 msgid "Please configure your e-mail address first..."
 msgstr ""
 
-#: cps/admin.py:1475
+#: cps/admin.py:1501
 msgid "E-mail server settings updated"
 msgstr ""
 
-#: cps/admin.py:1516
+#: cps/admin.py:1542
 #, python-format
 msgid "Password for user %(user)s reset"
 msgstr ""
 
-#: cps/admin.py:1519 cps/web.py:1442 cps/web.py:1503
+#: cps/admin.py:1545 cps/web.py:1470 cps/web.py:1531
 msgid "An unknown error occurred. Please try again later."
 msgstr ""
 
-#: cps/admin.py:1522 cps/web.py:1382
+#: cps/admin.py:1548 cps/web.py:1410
 msgid "Please configure the SMTP mail settings first..."
 msgstr ""
 
-#: cps/admin.py:1533
+#: cps/admin.py:1559
 msgid "Logfile viewer"
 msgstr ""
 
-#: cps/admin.py:1599
+#: cps/admin.py:1625
 msgid "Requesting update package"
 msgstr ""
 
-#: cps/admin.py:1600
+#: cps/admin.py:1626
 msgid "Downloading update package"
 msgstr ""
 
-#: cps/admin.py:1601
+#: cps/admin.py:1627
 msgid "Unzipping update package"
 msgstr ""
 
-#: cps/admin.py:1602
+#: cps/admin.py:1628
 msgid "Replacing files"
 msgstr ""
 
-#: cps/admin.py:1603
+#: cps/admin.py:1629
 msgid "Database connections are closed"
 msgstr ""
 
-#: cps/admin.py:1604
+#: cps/admin.py:1630
 msgid "Stopping server"
 msgstr ""
 
-#: cps/admin.py:1605
+#: cps/admin.py:1631
 msgid "Update finished, please press okay and reload page"
 msgstr ""
 
-#: cps/admin.py:1606 cps/admin.py:1607 cps/admin.py:1608 cps/admin.py:1609
-#: cps/admin.py:1610
+#: cps/admin.py:1632 cps/admin.py:1633 cps/admin.py:1634 cps/admin.py:1635
+#: cps/admin.py:1636
 msgid "Update failed:"
 msgstr ""
 
-#: cps/admin.py:1606 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
+#: cps/admin.py:1632 cps/updater.py:356 cps/updater.py:566 cps/updater.py:568
 msgid "HTTP Error"
 msgstr ""
 
-#: cps/admin.py:1607 cps/updater.py:358 cps/updater.py:570
+#: cps/admin.py:1633 cps/updater.py:358 cps/updater.py:570
 msgid "Connection error"
 msgstr ""
 
-#: cps/admin.py:1608 cps/updater.py:360 cps/updater.py:572
+#: cps/admin.py:1634 cps/updater.py:360 cps/updater.py:572
 msgid "Timeout while establishing connection"
 msgstr ""
 
-#: cps/admin.py:1609 cps/updater.py:362 cps/updater.py:574
+#: cps/admin.py:1635 cps/updater.py:362 cps/updater.py:574
 msgid "General error"
 msgstr ""
 
-#: cps/admin.py:1610
+#: cps/admin.py:1636
 msgid "Update File Could Not be Saved in Temp Dir"
 msgstr ""
 
-#: cps/admin.py:1671
+#: cps/admin.py:1697
 msgid "Failed to Create at Least One LDAP User"
 msgstr ""
 
-#: cps/admin.py:1684
+#: cps/admin.py:1710
 #, python-format
 msgid "Error: %(ldaperror)s"
 msgstr ""
 
-#: cps/admin.py:1688
+#: cps/admin.py:1714
 msgid "Error: No user returned in response of LDAP server"
 msgstr ""
 
-#: cps/admin.py:1721
+#: cps/admin.py:1747
 msgid "At Least One LDAP User Not Found in Database"
 msgstr ""
 
-#: cps/admin.py:1723
+#: cps/admin.py:1749
 msgid "{} User Successfully Imported"
 msgstr ""
 
@@ -433,6 +441,11 @@ msgstr ""
 msgid "Execution permissions missing"
 msgstr ""
 
+#: cps/db.py:626 cps/web.py:642 cps/web.py:1140
+#, python-format
+msgid "Custom Column No.%(column)d is not existing in calibre database"
+msgstr ""
+
 #: cps/editbooks.py:294 cps/editbooks.py:296
 msgid "Book Format Successfully Deleted"
 msgstr ""
@@ -441,8 +454,8 @@ msgstr ""
 msgid "Book Successfully Deleted"
 msgstr ""
 
-#: cps/editbooks.py:361 cps/editbooks.py:724 cps/web.py:1627 cps/web.py:1663
-#: cps/web.py:1734
+#: cps/editbooks.py:361 cps/editbooks.py:729 cps/web.py:1655 cps/web.py:1691
+#: cps/web.py:1762
 msgid "Error opening eBook. File does not exist or file is not accessible"
 msgstr ""
 
@@ -455,76 +468,76 @@ msgstr ""
 msgid "%(langname)s is not a valid language"
 msgstr ""
 
-#: cps/editbooks.py:595 cps/editbooks.py:936
+#: cps/editbooks.py:600 cps/editbooks.py:941
 #, python-format
 msgid "File extension '%(ext)s' is not allowed to be uploaded to this server"
 msgstr ""
 
-#: cps/editbooks.py:599 cps/editbooks.py:940
+#: cps/editbooks.py:604 cps/editbooks.py:945
 msgid "File to be uploaded must have an extension"
 msgstr ""
 
-#: cps/editbooks.py:611
-#, python-format
-msgid "Failed to create path %(path)s (Permission denied)."
-msgstr ""
-
 #: cps/editbooks.py:616
 #, python-format
+msgid "Failed to create path %(path)s (Permission denied)."
+msgstr ""
+
+#: cps/editbooks.py:621
+#, python-format
 msgid "Failed to store file %(file)s."
 msgstr ""
 
-#: cps/editbooks.py:634 cps/editbooks.py:1027 cps/web.py:1588
+#: cps/editbooks.py:639 cps/editbooks.py:1032 cps/web.py:1616
 #, python-format
 msgid "Database error: %(error)s."
 msgstr ""
 
-#: cps/editbooks.py:638
+#: cps/editbooks.py:643
 #, python-format
 msgid "File format %(ext)s added to %(book)s"
 msgstr ""
 
-#: cps/editbooks.py:775
+#: cps/editbooks.py:780
 msgid "Identifiers are not Case Sensitive, Overwriting Old Identifier"
 msgstr ""
 
-#: cps/editbooks.py:807
+#: cps/editbooks.py:812
 msgid "Metadata successfully updated"
 msgstr ""
 
-#: cps/editbooks.py:816
+#: cps/editbooks.py:821
 msgid "Error editing book, please check logfile for details"
 msgstr ""
 
-#: cps/editbooks.py:854
+#: cps/editbooks.py:859
 msgid "Uploaded book probably exists in the library, consider to change before upload new: "
 msgstr ""
 
-#: cps/editbooks.py:948
+#: cps/editbooks.py:953
 #, python-format
 msgid "File %(filename)s could not saved to temp dir"
 msgstr ""
 
-#: cps/editbooks.py:967
+#: cps/editbooks.py:972
 #, python-format
 msgid "Failed to Move Cover File %(file)s: %(error)s"
 msgstr ""
 
-#: cps/editbooks.py:1013
+#: cps/editbooks.py:1018
 #, python-format
 msgid "File %(file)s uploaded"
 msgstr ""
 
-#: cps/editbooks.py:1039
+#: cps/editbooks.py:1044
 msgid "Source or destination format for conversion missing"
 msgstr ""
 
-#: cps/editbooks.py:1047
+#: cps/editbooks.py:1052
 #, python-format
 msgid "Book successfully queued for converting to %(book_format)s"
 msgstr ""
 
-#: cps/editbooks.py:1051
+#: cps/editbooks.py:1056
 #, python-format
 msgid "There was an error converting this book: %(res)s"
 msgstr ""
@@ -709,7 +722,7 @@ msgstr ""
 msgid "Register with %(provider)s"
 msgstr ""
 
-#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1475
+#: cps/oauth_bb.py:139 cps/remotelogin.py:133 cps/web.py:1503
 #, python-format
 msgid "you are now logged in as: '%(nickname)s'"
 msgstr ""
@@ -779,7 +792,7 @@ msgstr ""
 msgid "{} Stars"
 msgstr ""
 
-#: cps/remotelogin.py:65 cps/web.py:1522
+#: cps/remotelogin.py:65 cps/web.py:1550
 msgid "login"
 msgstr ""
 
@@ -795,7 +808,7 @@ msgstr ""
 msgid "Success! Please return to your device"
 msgstr ""
 
-#: cps/render_template.py:39 cps/web.py:414
+#: cps/render_template.py:39 cps/web.py:415
 msgid "Books"
 msgstr ""
 
@@ -820,7 +833,7 @@ msgstr ""
 msgid "Show Downloaded Books"
 msgstr ""
 
-#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:424
+#: cps/render_template.py:56 cps/templates/index.xml:32 cps/web.py:425
 msgid "Top Rated Books"
 msgstr ""
 
@@ -829,7 +842,7 @@ msgid "Show Top Rated Books"
 msgstr ""
 
 #: cps/render_template.py:59 cps/templates/index.xml:54
-#: cps/templates/index.xml:58 cps/web.py:650
+#: cps/templates/index.xml:58 cps/web.py:651
 msgid "Read Books"
 msgstr ""
 
@@ -838,7 +851,7 @@ msgid "Show read and unread"
 msgstr ""
 
 #: cps/render_template.py:63 cps/templates/index.xml:61
-#: cps/templates/index.xml:65 cps/web.py:653
+#: cps/templates/index.xml:65 cps/web.py:654
 msgid "Unread Books"
 msgstr ""
 
@@ -856,7 +869,7 @@ msgid "Show random books"
 msgstr ""
 
 #: cps/render_template.py:69 cps/templates/book_table.html:51
-#: cps/templates/index.xml:83 cps/web.py:1024
+#: cps/templates/index.xml:83 cps/web.py:1025
 msgid "Categories"
 msgstr ""
 
@@ -866,7 +879,7 @@ msgstr ""
 
 #: cps/render_template.py:72 cps/templates/book_edit.html:84
 #: cps/templates/book_table.html:52 cps/templates/index.xml:90
-#: cps/templates/search_form.html:62 cps/web.py:921 cps/web.py:931
+#: cps/templates/search_form.html:62 cps/web.py:922 cps/web.py:932
 msgid "Series"
 msgstr ""
 
@@ -884,7 +897,7 @@ msgid "Show author selection"
 msgstr ""
 
 #: cps/render_template.py:79 cps/templates/book_table.html:56
-#: cps/templates/index.xml:76 cps/web.py:898
+#: cps/templates/index.xml:76 cps/web.py:899
 msgid "Publishers"
 msgstr ""
 
@@ -894,7 +907,7 @@ msgstr ""
 
 #: cps/render_template.py:82 cps/templates/book_table.html:54
 #: cps/templates/index.xml:97 cps/templates/search_form.html:100
-#: cps/web.py:1001
+#: cps/web.py:1002
 msgid "Languages"
 msgstr ""
 
@@ -918,7 +931,7 @@ msgstr ""
 msgid "Show file formats selection"
 msgstr ""
 
-#: cps/render_template.py:93 cps/web.py:677
+#: cps/render_template.py:93 cps/web.py:678
 msgid "Archived Books"
 msgstr ""
 
@@ -926,7 +939,7 @@ msgstr ""
 msgid "Show archived books"
 msgstr ""
 
-#: cps/render_template.py:97 cps/web.py:751
+#: cps/render_template.py:97 cps/web.py:752
 msgid "Books List"
 msgstr ""
 
@@ -1058,190 +1071,185 @@ msgstr ""
 msgid "No release information available"
 msgstr ""
 
-#: cps/templates/index.html:5 cps/web.py:434
+#: cps/templates/index.html:5 cps/web.py:435
 msgid "Discover (Random Books)"
 msgstr ""
 
-#: cps/web.py:460
+#: cps/web.py:461
 msgid "Hot Books (Most Downloaded)"
 msgstr ""
 
-#: cps/web.py:493
+#: cps/web.py:494
 #, python-format
 msgid "Downloaded books by %(user)s"
 msgstr ""
 
-#: cps/web.py:508
+#: cps/web.py:509
 msgid "Oops! Selected book title is unavailable. File does not exist or is not accessible"
 msgstr ""
 
-#: cps/web.py:522
+#: cps/web.py:523
 #, python-format
 msgid "Author: %(name)s"
 msgstr ""
 
-#: cps/web.py:537
+#: cps/web.py:538
 #, python-format
 msgid "Publisher: %(name)s"
 msgstr ""
 
-#: cps/web.py:550
+#: cps/web.py:551
 #, python-format
 msgid "Series: %(serie)s"
 msgstr ""
 
-#: cps/web.py:563
+#: cps/web.py:564
 #, python-format
 msgid "Rating: %(rating)s stars"
 msgstr ""
 
-#: cps/web.py:576
+#: cps/web.py:577
 #, python-format
 msgid "File format: %(format)s"
 msgstr ""
 
-#: cps/web.py:592
+#: cps/web.py:593
 #, python-format
 msgid "Category: %(name)s"
 msgstr ""
 
-#: cps/web.py:611
+#: cps/web.py:612
 #, python-format
 msgid "Language: %(name)s"
 msgstr ""
 
-#: cps/web.py:641
-#, python-format
-msgid "Custom Column No.%(column)d is not existing in calibre database"
-msgstr ""
-
-#: cps/templates/layout.html:56 cps/web.py:711 cps/web.py:1314
+#: cps/templates/layout.html:56 cps/web.py:712 cps/web.py:1342
 msgid "Advanced Search"
 msgstr ""
 
-#: cps/templates/book_edit.html:214 cps/templates/feed.xml:33
+#: cps/templates/book_edit.html:229 cps/templates/feed.xml:33
 #: cps/templates/index.xml:11 cps/templates/layout.html:45
-#: cps/templates/layout.html:48 cps/templates/search_form.html:194
-#: cps/web.py:723 cps/web.py:1061
+#: cps/templates/layout.html:48 cps/templates/search_form.html:213
+#: cps/web.py:724 cps/web.py:1062
 msgid "Search"
 msgstr ""
 
-#: cps/templates/admin.html:16 cps/web.py:876
+#: cps/templates/admin.html:16 cps/web.py:877
 msgid "Downloads"
 msgstr ""
 
-#: cps/web.py:952
+#: cps/web.py:953
 msgid "Ratings list"
 msgstr ""
 
-#: cps/web.py:973
+#: cps/web.py:974
 msgid "File formats list"
 msgstr ""
 
-#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1038
+#: cps/templates/layout.html:74 cps/templates/tasks.html:7 cps/web.py:1039
 msgid "Tasks"
 msgstr ""
 
-#: cps/web.py:1182
+#: cps/web.py:1200
 msgid "Published after "
 msgstr ""
 
-#: cps/web.py:1189
+#: cps/web.py:1207
 msgid "Published before "
 msgstr ""
 
-#: cps/web.py:1211
+#: cps/web.py:1229
 #, python-format
 msgid "Rating <= %(rating)s"
 msgstr ""
 
-#: cps/web.py:1213
+#: cps/web.py:1231
 #, python-format
 msgid "Rating >= %(rating)s"
 msgstr ""
 
-#: cps/web.py:1215
+#: cps/web.py:1233
 #, python-format
 msgid "Read Status = %(status)s"
 msgstr ""
 
-#: cps/web.py:1387
+#: cps/web.py:1415
 #, python-format
 msgid "Book successfully queued for sending to %(kindlemail)s"
 msgstr ""
 
-#: cps/web.py:1391
+#: cps/web.py:1419
 #, python-format
 msgid "Oops! There was an error sending this book: %(res)s"
 msgstr ""
 
-#: cps/web.py:1393
+#: cps/web.py:1421
 msgid "Please update your profile with a valid Send to Kindle E-mail Address."
 msgstr ""
 
-#: cps/web.py:1410
+#: cps/web.py:1438
 msgid "E-Mail server is not configured, please contact your administrator!"
 msgstr ""
 
-#: cps/web.py:1411 cps/web.py:1418 cps/web.py:1424 cps/web.py:1443
-#: cps/web.py:1447 cps/web.py:1453
+#: cps/web.py:1439 cps/web.py:1446 cps/web.py:1452 cps/web.py:1471
+#: cps/web.py:1475 cps/web.py:1481
 msgid "register"
 msgstr ""
 
-#: cps/web.py:1445
+#: cps/web.py:1473
 msgid "Your e-mail is not allowed to register"
 msgstr ""
 
-#: cps/web.py:1448
+#: cps/web.py:1476
 msgid "Confirmation e-mail was send to your e-mail account."
 msgstr ""
 
-#: cps/web.py:1465
+#: cps/web.py:1493
 msgid "Cannot activate LDAP authentication"
 msgstr ""
 
-#: cps/web.py:1482
+#: cps/web.py:1510
 #, python-format
 msgid "Fallback Login as: '%(nickname)s', LDAP Server not reachable, or user not known"
 msgstr ""
 
-#: cps/web.py:1488
+#: cps/web.py:1516
 #, python-format
 msgid "Could not login: %(message)s"
 msgstr ""
 
-#: cps/web.py:1492 cps/web.py:1516
+#: cps/web.py:1520 cps/web.py:1544
 msgid "Wrong Username or Password"
 msgstr ""
 
-#: cps/web.py:1499
+#: cps/web.py:1527
 msgid "New Password was send to your email address"
 msgstr ""
 
-#: cps/web.py:1505
+#: cps/web.py:1533
 msgid "Please enter valid username to reset password"
 msgstr ""
 
-#: cps/web.py:1511
+#: cps/web.py:1539
 #, python-format
 msgid "You are now logged in as: '%(nickname)s'"
 msgstr ""
 
-#: cps/web.py:1565 cps/web.py:1612
+#: cps/web.py:1593 cps/web.py:1640
 #, python-format
 msgid "%(name)s's profile"
 msgstr ""
 
-#: cps/web.py:1579
+#: cps/web.py:1607
 msgid "Profile updated"
 msgstr ""
 
-#: cps/web.py:1583
+#: cps/web.py:1611
 msgid "Found an existing account for this e-mail address."
 msgstr ""
 
-#: cps/web.py:1639 cps/web.py:1642 cps/web.py:1645 cps/web.py:1648
-#: cps/web.py:1655 cps/web.py:1660
+#: cps/web.py:1667 cps/web.py:1670 cps/web.py:1673 cps/web.py:1676
+#: cps/web.py:1683 cps/web.py:1688
 msgid "Read a Book"
 msgstr ""
 
@@ -1498,7 +1506,7 @@ msgid "OK"
 msgstr ""
 
 #: cps/templates/admin.html:209 cps/templates/admin.html:223
-#: cps/templates/book_edit.html:192 cps/templates/book_table.html:85
+#: cps/templates/book_edit.html:207 cps/templates/book_table.html:85
 #: cps/templates/config_edit.html:427 cps/templates/config_view_edit.html:151
 #: cps/templates/modal_dialogs.html:64 cps/templates/modal_dialogs.html:99
 #: cps/templates/modal_dialogs.html:117 cps/templates/modal_dialogs.html:135
@@ -1596,13 +1604,13 @@ msgstr ""
 msgid "Book Title"
 msgstr ""
 
-#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:258
-#: cps/templates/book_edit.html:276 cps/templates/search_form.html:11
+#: cps/templates/book_edit.html:57 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:291 cps/templates/search_form.html:11
 msgid "Author"
 msgstr ""
 
-#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:263
-#: cps/templates/book_edit.html:278 cps/templates/search_form.html:146
+#: cps/templates/book_edit.html:61 cps/templates/book_edit.html:278
+#: cps/templates/book_edit.html:293 cps/templates/search_form.html:146
 msgid "Description"
 msgstr ""
 
@@ -1610,15 +1618,15 @@ msgstr ""
 msgid "Identifiers"
 msgstr ""
 
-#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:287
+#: cps/templates/book_edit.html:70 cps/templates/book_edit.html:302
 msgid "Identifier Type"
 msgstr ""
 
-#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:288
+#: cps/templates/book_edit.html:71 cps/templates/book_edit.html:303
 msgid "Identifier Value"
 msgstr ""
 
-#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:289
+#: cps/templates/book_edit.html:72 cps/templates/book_edit.html:304
 #: cps/templates/user_table.html:23
 msgid "Remove"
 msgstr ""
@@ -1651,8 +1659,8 @@ msgstr ""
 msgid "Published Date"
 msgstr ""
 
-#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:260
-#: cps/templates/book_edit.html:277 cps/templates/detail.html:164
+#: cps/templates/book_edit.html:116 cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:292 cps/templates/detail.html:164
 #: cps/templates/search_form.html:15
 msgid "Publisher"
 msgstr ""
@@ -1672,56 +1680,56 @@ msgstr ""
 msgid "No"
 msgstr ""
 
-#: cps/templates/book_edit.html:178
+#: cps/templates/book_edit.html:193
 msgid "Upload Format"
 msgstr ""
 
-#: cps/templates/book_edit.html:187
+#: cps/templates/book_edit.html:202
 msgid "View Book on Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:190 cps/templates/book_edit.html:208
+#: cps/templates/book_edit.html:205 cps/templates/book_edit.html:223
 msgid "Fetch Metadata"
 msgstr ""
 
-#: cps/templates/book_edit.html:191 cps/templates/config_edit.html:424
+#: cps/templates/book_edit.html:206 cps/templates/config_edit.html:424
 #: cps/templates/config_view_edit.html:150 cps/templates/email_edit.html:64
 #: cps/templates/shelf_edit.html:17 cps/templates/shelf_order.html:40
 #: cps/templates/user_edit.html:130
 msgid "Save"
 msgstr ""
 
-#: cps/templates/book_edit.html:211
+#: cps/templates/book_edit.html:226
 msgid "Keyword"
 msgstr ""
 
-#: cps/templates/book_edit.html:212
+#: cps/templates/book_edit.html:227
 msgid " Search keyword "
 msgstr ""
 
-#: cps/templates/book_edit.html:218
+#: cps/templates/book_edit.html:233
 msgid "Click the cover to load metadata to the form"
 msgstr ""
 
-#: cps/templates/book_edit.html:233 cps/templates/book_edit.html:273
+#: cps/templates/book_edit.html:248 cps/templates/book_edit.html:288
 msgid "Loading..."
 msgstr ""
 
-#: cps/templates/book_edit.html:238 cps/templates/layout.html:186
+#: cps/templates/book_edit.html:253 cps/templates/layout.html:186
 #: cps/templates/layout.html:208 cps/templates/modal_dialogs.html:34
 #: cps/templates/user_edit.html:150
 msgid "Close"
 msgstr ""
 
-#: cps/templates/book_edit.html:265 cps/templates/book_edit.html:279
+#: cps/templates/book_edit.html:280 cps/templates/book_edit.html:294
 msgid "Source"
 msgstr ""
 
-#: cps/templates/book_edit.html:274
+#: cps/templates/book_edit.html:289
 msgid "Search error!"
 msgstr ""
 
-#: cps/templates/book_edit.html:275
+#: cps/templates/book_edit.html:290
 msgid "No Result(s) found! Please try another keyword."
 msgstr ""
 
@@ -2246,45 +2254,45 @@ msgstr ""
 msgid "Published"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Unread"
 msgstr ""
 
-#: cps/templates/detail.html:216
+#: cps/templates/detail.html:218
 msgid "Mark As Read"
 msgstr ""
 
-#: cps/templates/detail.html:217
+#: cps/templates/detail.html:219
 msgid "Read"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Restore from archive"
 msgstr ""
 
-#: cps/templates/detail.html:225
+#: cps/templates/detail.html:227
 msgid "Add to archive"
 msgstr ""
 
-#: cps/templates/detail.html:226
+#: cps/templates/detail.html:228
 msgid "Archived"
 msgstr ""
 
-#: cps/templates/detail.html:237
+#: cps/templates/detail.html:239
 msgid "Description:"
 msgstr ""
 
-#: cps/templates/detail.html:250 cps/templates/search.html:14
+#: cps/templates/detail.html:252 cps/templates/search.html:14
 msgid "Add to shelf"
 msgstr ""
 
-#: cps/templates/detail.html:261 cps/templates/detail.html:278
+#: cps/templates/detail.html:263 cps/templates/detail.html:280
 #: cps/templates/feed.xml:79 cps/templates/layout.html:137
 #: cps/templates/search.html:20
 msgid "(Public)"
 msgstr ""
 
-#: cps/templates/detail.html:292
+#: cps/templates/detail.html:294
 msgid "Edit Metadata"
 msgstr ""
 
@@ -2826,6 +2834,14 @@ msgstr ""
 msgid "Rating Below"
 msgstr ""
 
+#: cps/templates/search_form.html:173
+msgid "From:"
+msgstr ""
+
+#: cps/templates/search_form.html:180
+msgid "To:"
+msgstr ""
+
 #: cps/templates/shelf.html:10
 msgid "Delete this Shelf"
 msgstr ""
diff --git a/requirements.txt b/requirements.txt
index a90226b2..8f273296 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,6 @@ Babel>=1.3, <2.9
 Flask-Babel>=0.11.1,<2.1.0
 Flask-Login>=0.3.2,<0.5.1
 Flask-Principal>=0.3.2,<0.5.1
-singledispatch>=3.4.0.0,<3.5.0.0
 backports_abc>=0.4
 Flask>=1.0.2,<1.2.0
 iso-639>=0.4.5,<0.5.0
diff --git a/setup.cfg b/setup.cfg
index 89e0f598..8266391c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -38,7 +38,6 @@ install_requires =
     Flask-Babel>=0.11.1,<2.1.0
     Flask-Login>=0.3.2,<0.5.1
     Flask-Principal>=0.3.2,<0.5.1
-    singledispatch>=3.4.0.0,<3.5.0.0
     backports_abc>=0.4
     Flask>=1.0.2,<1.2.0
     iso-639>=0.4.5,<0.5.0