When creating a chat room, you are required to configure it before you can start the chat room conversation. However, after the chat room was created, you can also update the room configuration at any time.
1. Click 
in the Conversation form of the chat room.
2. Set values for the fields in this form. For more details, see here.
Note
The chat room configuration is available only if you are the owner or administrator of the chat room. You can change the room owner and select the room administrator in the Set the Security settings section.