As an alternative to T153255.
https://www.mediawiki.org/w/index.php?title=Topic:Trdi58p0nwdv94c9 is where this was suggested.
Description found in suggestion
The current wikitext editor seems to be missing an option to easily add signature to talk page discussions. It would be nice if it was enabled in some way. Two possibilities are:
- Keyboard shortcut
- Option in menu bar
Expecting one soon!
Note : Adding to the above description, implementing both would be even better!