Added a Menu button in the Bookmarked Playlists tab.

app/src/main/java/org/schabi/newpipe/local/bookmark/BookmarkFragment.java

@@ -6,6 +6,9 @@ import android.os.Parcelable;
 import android.text.InputType;
 import android.util.Log;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -58,6 +61,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     @Override
     public void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
         if (activity == null) {
             return;
         }
@@ -78,6 +82,20 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         }
         return inflater.inflate(R.layout.fragment_bookmarks, container, false);
     }
+    @Override
+    public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
+        inflater.inflate(R.menu.menu_bookmark_playlist, menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(final MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.import_playlist:
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
 
     @Override
     public void onResume() {

app/src/main/res/menu/menu_bookmark_playlist.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/import_playlist"
+        android:title="@string/import_title"
+        app:showAsAction="never" />
+</menu>