When at least one user is on the waitlist for a course, the course administrator has the option to override the seating capacity to allow them to attend the training session.

To do that as a course admin, go to the "Waitlist" (1) tab on the training event's page where you can view all the users on the waitlist. To override the event's seat limit, click on the "check" (2) icon and assign a waitlisted user to the session. To remove a user from the waitlist, click on the "trash bin" (3) icon.

When you click on the "check" (2) icon, a modal pops-up asking you to either confirm (4) overriding the seating capacity and assigning the user to an overbooked training session or cancel (5) your action.