What is the Wait List Reserve field on the RSVP Event page?
Wait List Reserve works in conjunction with the Regular Capacity field. When an event has a capacity limit and the wait list reserve field contains a value greater than zero, then someone registering for an RSVP event filled to regular capacity will get a page offering to add them to the wait list. People adding themselves to the wait list will have “Wait Listed, Registration Eligible” status until their number equals the wait list reserve value. Everyone added to the wait list after that will have “Wait Listed, Registration Ineligible” status.