If a simple signup event is over capacity, but you want people to reserve spots in case they become available, you can enable a wait list for selections.
From the Selection tab in the Event Settings, check the box to enable the wait list.
As people sign up to attend the event, the Registrations number will increase.
If someone has already selected the waitlist, the box will be grayed out.
What does it look like on the event page?
If someone wants a selection that's full, they can add the number in their party to the Wait List.
Promote Waitlist Registrations
As people sign up, they will be added to the Waitlist tab. Click the registration to promote it.
From the registration, click Promote to move the the registration from Wait list to Active.
When you promote a registration, the Registration contact will receive an email about their registration.