How to remove information on spark's edit my profile?

I want to remove the “nickname” because it is showing on groupchat room. Or is there a way to show just the username on chatrooms not the nicknames that made?

I’m very thankful if this issue is solve.

it’s mean that you only just wanna show your real name despite of nickname on gorup chat?

yup, i want to show on the groupchat their username instead of the nickname that the users created on sparks “edit my profile”. I installed the client control plugin on openfire but the thing is the nickname is save on spark client and it is still showing on the groupchat.