There is also a general class chat room and a chat room that all courses can access. Don't use the latter chat room. No additional chat rooms can be created.
Any student can login to any chat room at any time.
Click the Online Chat button on the course home page. After the chat window displays, click the Settings button at the bottom of the page. A window similar to the window below will display. Type in the online chat rooms and click the Update button when you are done. Students do not have access to these logs.