Add a new feature that could help a lot

Can you please add the option to use own names with other users. I have a lot of friends who are constantly changing their name and profile picture. I would like to set their displayed name to one I chose. It would be displayed just for me, so I don't have to open notes every time to find who is it. Especially on phone it is complicated for me. And i hope this otion would help a lot of users.