You should not be able to add classes if you have no schedules, or it should create one for you.

[huangcathy]

In the new "Multiple Schedules" implementation, if you don't have any schedules, and you try to add a class, one of the following things should happen:

• The user should not be able to add the class. (In this case, the "Add" button should be hidden).
• A new schedule is automatically generated for you, and the class is added to that new schedule.