Multi User Chat
Multi User Chat(MUC) is the next generation of the GroupChat protocol. MUC is implemented starting from Psi 0.11. And Psi 0.10 is minimally compatible with MUC rooms (with several (many) limitations).
You can join a multi user chat by clicking the Psi menu, then selecting Join Groupchat. The Join Groupchat dialog appears (shown on the right).
If you have more than one Jabber account, you can select from the "Identity" list which one to use when you connect to the Groupchat.
Enter the name of the Jabber Conference server into the Host field. Note: Not every Jabber server runs the Conference service. If you type in a chat room that doesn't exist, it will be created. Type in a nickname that you want to be known as during this chat session. If you have previously been to this chat room, you can select it from the "Recent" list.
Shown on the left is a chat room called jdev - the Jabber developers room. You can can see the list of people on the right hand side, the chat area on the left, and text entry at the bottom.
If you want to change the topic, click the Topic button. To quit the multi user chat, simply close the window in the normal way.
 Inviting friends
You are able to invite your friends to join a multi user chat room that you are already in. Simply press the right mouse button on their name, point to Invite to, and click the room you want to invite them to. The example on the left shows me inviting Justin to the chat room jdev that I joined above.
 Receiving Invitations
The dialog shown on the right is what you see when someone sends you an invitation. It appears just like a regular message, but with a special attachment. Don't click the link in the message, double-click the attachment instead. It will then open the Join Groupchat dialog shown at the top of this page, with the details of the Groupchat room you have been invited to. Simply type in a nickname and click the Join button.
The method of receiving invitations will be improved in a future release.
new in psi 0.13
Starting with Psi 0.13 you can also enter a command mode that allows invoking text based commands (similar to irc). To activate command mode, press the keyboard shortcut defined in "Shortcuts in the chat Dialog -> Change to quick command mode". To leave the command mode just press return without any text in the input box.
- clear currently displayed history.
- nick [newnick]
- change nickname to newnick. If nickname is omitted, offers current nickname to edit.
- (status ping) Check joined status on current room.
- version nick
- Display client version of nick