To do this, navigate to:
- Select Core or School Website from the menu in the top left
- Navigate to Events > Registration Forms & Attendees
- Click Edit next to the name of the Event Registration you are trying to hide Items from
- Click Registration Items on the left
- Click Edit Group for each Item you wish to hide
- Unmark the Roles that have access to see those "Group Items"
- Click Save or Save & Exit
- Repeat this process for each Group.