Hide chat/Ban all users chat (except Admin/Mods/Group)

Hey guys any way to hide the chat from all users except The Admin/Moderators/certain Group? I know if I go to chat /ban USERNAME it'll ban them, but I'd rather ban them from the get go and unban them when they get into the group I specify. I don't mind manually unbanning them but banning may take some time...

Oh I know that sense its what created with php correct? So I guess I'll have to ban all manually hahaha. Oh boy. Well thanks Rideem, you can close er off