Admin vs Staff vs Staff Viewer Roles

Admins have the same level of access as the account owner. 

Staff have the same level of access as admins, except they can't access the settings area or billing. 

Staff Viewer role will have the same access as staff, but cannot make any additions or changes.

You can assign staff and staff viewer roles to specific campuses. That means that they will only be able to see people and groups from their campus.