Path : Manage Event > Expand Event Settings > Click on Display Settings.
Event Organizer will have access to edit and save Display settings.
If event Organizer edit and save Display Settings, where does these settings apply in Eventdex?
Whatever changes does Event Organizer edit and save in Display Settings those changes will reflect on registration page.
Go through the following display settings table to know about each field setting options.
Make sure to save changes.