Before I start this allow me to say that I do not code, I really have no experience or knowledge of it.
Okay I am a server manager of a sandbox server, we use the sui_scoreboard and URS. As you may or may not know they both use teams to restrict or show rank/color. Now I have this issue of new players coming on and talking in team chat which I can not see unless I look at my log files or web console. So I need some way I can either disable team chat or make it when a player hits the U key to automaticly open the regular Y chat.