Open your campus list
Go to Old → Core → Campus. Existing access permissions remain unchanged.
Choose your layout
Classic opens first unless you save another default. Use Try the new layout or View old layout to switch. A layout in the page address takes priority for that visit. If saving a default fails, your previous choice remains; try saving again. Switching keeps the same list, filters and open campus form.
Keep the original campus actions
Your existing Create Campus, Edit, Change Theme and Delete controls keep their original permissions and behavior. Switching views does not save a campus, delete it or change its theme. The existing loading, information and error behavior remain unchanged.