I was using a version of this software that was a couple years old. It is being used ONLY for Jabber.
In that version, there was an icon in a chat window that you could click to bring up the other users and add them so you could send a message to as many people at once as you'd like. I don't seem to have that icon in the newest version and since the Wiki is offline, I wasn't sure where else to look for help.
Thanks in advance!