Admins at Gatherly events can send news messages to all attendees, start and run a broadcast, ban users from an event, and edit booth banners and content.
Check out the linked guides above for more details!
There are no limits on the number of admins per event. Admins just need to log on with an admin link to your event, which can be found in the "Access Links" portion of the event setup process. For more details, see here.