diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator addprefix.tid b/editions/tw5.com/tiddlers/filters/FilterOperator addprefix.tid
new file mode 100644
index 000000000..48ac8129d
--- /dev/null
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator addprefix.tid	
@@ -0,0 +1,15 @@
+created: 20140410103123179
+modified: 20140410103123179
+tags: Filters
+caption: addprefix
+title: FilterOperator: addprefix
+type: text/vnd.tiddlywiki
+
+The ''addprefix'' filter operator add a prefix to all titles in the current list.
+
+For example:
+
+|!Filter String |!Description |
+|`one two three +[addprefix[tid-]]` |Returns `tid-one`, `tid-two`, `tid-three` |
+
+See also [[FilterOperator: prefix]], [[FilterOperator: suffix]], [[FilterOperator: addsuffix]], [[FilterOperator: removeprefix]] and [[FilterOperator: removesuffix]].
diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator addsuffix.tid b/editions/tw5.com/tiddlers/filters/FilterOperator addsuffix.tid
new file mode 100644
index 000000000..ecd3748b7
--- /dev/null
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator addsuffix.tid	
@@ -0,0 +1,15 @@
+created: 20140828133830424
+modified: 20140902145613329
+tags: Filters
+caption: addsuffix
+title: FilterOperator: addsuffix
+type: text/vnd.tiddlywiki
+
+The ''addsuffix'' filter operator adds a suffix to all titles in the current list.
+
+For example:
+
+|!Filter String |!Description |
+|`one two three +[addsuffix[-tid]]` |Returns `one-tid`, `two-tid`, `three-tid` |
+
+See also [[FilterOperator: suffix]], [[FilterOperator: prefix]], [[FilterOperator: addprefix]], [[FilterOperator: removesuffix]], and [[FilterOperator: removeprefix]].
diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator prefix.tid b/editions/tw5.com/tiddlers/filters/FilterOperator prefix.tid
index 41139bbb4..af965c7c6 100644
--- a/editions/tw5.com/tiddlers/filters/FilterOperator prefix.tid	
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator prefix.tid	
@@ -13,4 +13,4 @@ For example:
 |`[tag[task]!prefix[hidden]]` |Returns tiddlers tagged `task` whose titles do not start with `hidden` |
 |`[prefix[$:/]]` |Equivalent to `[is[system]]` |
 
-See also [[FilterOperator: removeprefix]], [[FilterOperator: removesuffix]] and [[FilterOperator: removesuffix]].
+See also [[FilterOperator: removeprefix]], [[FilterOperator: removesuffix]], [[FilterOperator: removesuffix]], [[FilterOperator: addprefix]], and [[FilterOperator: addsuffix]].
diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator removeprefix.tid b/editions/tw5.com/tiddlers/filters/FilterOperator removeprefix.tid
index a3aebd3bd..c9ab7b69a 100644
--- a/editions/tw5.com/tiddlers/filters/FilterOperator removeprefix.tid	
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator removeprefix.tid	
@@ -12,4 +12,4 @@ For example:
 |!Filter String |!Description |
 |`tid-one tid-two three +[removeprefix[tid-]]` |Returns `one`, `two` |
 
-See also [[FilterOperator: prefix]], [[FilterOperator: suffix]] and [[FilterOperator: removesuffix]].
+See also [[FilterOperator: prefix]], [[FilterOperator: suffix]], [[FilterOperator: removesuffix]], [[FilterOperator: addprefix]], and [[FilterOperator: addsuffix]].
diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator removesuffix.tid b/editions/tw5.com/tiddlers/filters/FilterOperator removesuffix.tid
index b07a4e3d2..9b55a9383 100644
--- a/editions/tw5.com/tiddlers/filters/FilterOperator removesuffix.tid	
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator removesuffix.tid	
@@ -12,4 +12,4 @@ For example:
 |!Filter String |!Description |
 |`one-tid two-tid three +[removesuffix[-tid]]` |Returns `one`, `two` |
 
-See also [[FilterOperator: suffix]], [[FilterOperator: prefix]] and [[FilterOperator: removeprefix]].
+See also [[FilterOperator: suffix]], [[FilterOperator: prefix]], [[FilterOperator: removeprefix]], [[FilterOperator: addprefix]], and [[FilterOperator: addsuffix]].
diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator suffix.tid b/editions/tw5.com/tiddlers/filters/FilterOperator suffix.tid
index a82c9fca5..0c12a01a2 100644
--- a/editions/tw5.com/tiddlers/filters/FilterOperator suffix.tid	
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator suffix.tid	
@@ -13,4 +13,4 @@ For example:
 |`[tag[task]!suffix[hidden]]` |Returns tiddlers tagged `task` whose titles do not end with `hidden` |
 |`[suffix[.jpg]]` |Returns tiddlers whose titles end with `.jpg` |
 
-See also [[FilterOperator: removesuffix]], [[FilterOperator: prefix]] and [[FilterOperator: removeprefix]].
+See also [[FilterOperator: removesuffix]], [[FilterOperator: prefix]], [[FilterOperator: removeprefix]], [[FilterOperator: addprefix]], and [[FilterOperator: addsuffix]].