Assign nickname to friend

Steam has this already but it sure would be nice if discord did too.  One friend changes their name and they are G-O-N-E until I figure out the change. :(

*note* Searched here and google and people have been asking for this for at LEAST four years. :(

Assign a personal nickname to a friend to differentiate them from others with a similar name or keep track of them through their frequent name changes.