Chat M.A.T

In the rooms, especially in GhostMod. They are deleting messages from chat.
Another novelty is now talking as if it were someone else.
Does anyone know how to do this?
Thank you.

Could you explain more clearly ?? thz

Hmm That's strange never experience this before.

i have and i want to know how can i do it

for me everything in the chat box is gone

i know that,,, that's no need cheat,, just old trick

can you tell us how to do it?