UX - App Page Management Update
Looks like you no longer need to do app management at a super granular level (time consuming and frustrating) but can do it at a User Role level for add, delete, override.
Not sure how long it's been live but have only noticed it in the last couple of days.
Here's the Anapedia page... https://help.anaplan.com/3ebd6d01-1897-4b79-b48d-0e65b83f9a99-Bulk-manage-access-to-an-app
Quite handy if you've added a whole load of new pages, want to deprecate old ones or added a new user role.