Editing Instructor Class
•After a class has been created all fields may be edited if the roster is empty and the class has not started •If the roster is not empty or the class has started the following fields may not be changed:
lClass Name
lCourse
lLanguage
lVersion
lStart Date
lEnvironment
If no instructors are enrolled in the class, the user editing the class may delete the class by selecting the delete key.  Selecting the cancel button will return the user to the previous page without submitting any changes.

CATCs may also freeze a class to stop further enrollment.