Add disable all notifications option for web, email and mobile (separately)

There is already a 'Disable notifications' that disables all notifications (for web, email and mobile), could disable all notifications options for web, email and mobile (separately) be added?

It would be particularly useful for the Moodle App, where you don't see listed web, email and mobile all together and can be confusing for the final user. (In the sense that they can think 'Disable notifications' only affects what they have selected on the same screen, when it is not)