XMPP chatroom

[Isaac Witmer]

I'm interested in learning more about using XMPP chatrooms, and I just
found the "/configure" command for XMPP chatrooms:
http://developer.pidgin.im/wiki/Protocol%20Specific%20Questions#HowdoIconfigureachatroom

However I can't find any documentation on how to use it.
The window has several text boxes with the following prompts:
muc#roomconfigureroomname:
muc#roomconfigfeatures:
broadcast-id:
broadcast-title:
open-broadcast:
broadcast-url:
muc#roominfoownerprofile-id:

I'm using XMPP on groupchat.google.com, and Pidgin 2.7.11 (libpurple 2.7.11)

Any info on what those labels mean, and what possibilities there are
would be welcome. I probably just didn't perform the right google
search...

Thanks!

-Isaac