yea they do have that specific command, but im not sure i was clear on my thought..
what i mean is when your on like 2 or 3 servers and you need to ask a question or something and you want to ask all the channel you are on, on all of the servers you are on also..
the command of course doesnt have to be /global* it could be like /as* for all servers or something, im sure there is prolly a better command for it but i hope im more clear on my thought..