By default, the instructor has the ability to manage all aspects of an event or set another user as the instructor. 

When a non-admin user is listed as an instructor of an event, they'll see the Event menu item in the navigation bar at the top of the screen. This allows them access to all Events they are listed as instructors of.

They can view the title, date, time, RSVP link, and guests attending. All of these items are editable by the instructor.

Similar to when a user is granted ownership of content, the event instructor receives a notification informing them they have been designated as the instructor of an event and they now have access to manage it.

If the user is removed from being an instructor they receive an email notifying them of the update.