Event name is for a show that is an event with its own name at a venue: Not Alone Summit + Awards at The Wynn, or Harvest Fest at a county fairground.
WHERE: on the day page, tap + Event name under the venue (tour admins). Add a Date and Add a Run have an optional Event name on show and festival days too.
WHAT IT DOES: the event name becomes the big headline on the day and the venue sits under it ("at The Wynn"). Tap either one to edit it. The event name also shows on the calendar, on the day sheet and its PDF, and YO ATOM knows it ("when is the summit?").
WHY NOT JUST RENAME THE VENUE: the venue name is the place. Renaming it renames the venue everywhere: the settlement, imports that match by venue, and the venue directory. Keep the venue as the real place and put the event's name in Event name.
Clear the event name to go back to the venue as the headline.