This seems like a no-no from the start, but ¿Can I prevent a subpage to be individually deleted, while allowing it to be deleted along its parent?
Consider a page structure such as:
editions (delete: false) edition (delete: true) exhibitions (delete: false) exhibition A (delete: true) exhibition B (delete: true) ... performances (delete: false) performance A (delete: true) ...
I’d want to avoid users deleting categories such as ‘editions’ ‘exhibitions’ or ‘performances’ while I’d still want them to be able to delete items such as ‘edition’,‘exhibition’ or ‘performance’.
The problem is that the item ‘edition’ cannot be deleted because it contains the categories ‘exhibitions’ and ‘performances’ which cannot be deleted.
In this particular case permissions are not a solution because both the ability to delete itesm and the prohibition to delete categories affect the same type of user.