Add option to show only the unique prefix of tab names

When the set of tabs used fluctuate, the memory of which number
belongs to which chat becomes difficult to work with. Non-numbers
can be used to navigate tabs with `/win`, however, it is difficult
to know which letters are required to select a certain tab.

This option introduces a display mode for tab names where only the
unique prefix of the tab name is shown, saving space and providing
with a minimal string which can be used with `/win`.

1 files changed, 11 insertions, 0 deletions

diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index 9619022a..aceb6fb4 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -793,6 +793,17 @@ or the way messages are displayed.
 
         If you want to show the tab name in the bottom Tab bar, set this to ``true``.
 
+    unique_prefix_tab_names
+
+        **Default value:** ``false``
+
+        If this and :term:`show_tab_names` is set to true, only the shortest
+        unique prefix of each tab name is shown instead of the full name. This
+        can declutter the interface in an instance with many tabs shown in the
+        interface, while not having to use numbers (which may change completely due to reordering).
+
+        Takes precedence over `use_tab_nicks`.
+
     show_tab_numbers
 
         **Default value:** ``true``