**Background:** As part of V0, we created the ability for organizers to delete registration that had been enabled on an event page. However, with the current implementation, once registration is deleted, it cannot be restored or re-enabled. This needs to change in the future, since there may certainly be times when the organizer does want to restore registration.
* If registration has been deleted by organizer, they should be able to restore it
** UI to be determined but it may work in the following way: 'Enable registration' button is changed to 'Restore registration' for the organizer view
* Note: Do we need an investigation to see how this would be done?
* If registration is restored, can we allow organizer to select whether participant list is restored OR participant list is left publicly empty for the newly restored version?
* Is there a way to indicate that the registration has been deleted to non-organizers in the UI?