Text Channels and joining them

Would anybody know how to make it so a player can choose to join a channel?


Like one of these ^

I found almost no info on these and the wiki doesn’t help very much and I don’t think it’s even correct. Does somebody know an obscure way of letting the play join one of these via a event or something?

I’ve tried using the info from the wiki but I don’t exactly know how to use it correctly. Maybe there’s an easier way of doing this? I’ll provide all needed info.