NOTE: Accepting Checks as a payment method automatically turns on the Waitlist.
From the left navigation menu, click Classes > Class Admin.
Search for the class to which you'd like to add a waitlist.
Next to the Class Title, click the gear icon.
Slide the button to YES to the right of Allow Waitlist.
Click the Reg Slot & Instructors tab.
Enter the desired slot and waitlist limits.
Click Save & Close.