[solved] Notification settings - Activate & Deactivate ALL button

Once a user has registered to the site, he gets flooded with notifications. If he goes to notification settings to activate or deactivate the desired notifications sorted in on site, email and push,  clicking dozens of buttons is needed.

It would be a great feature to have a "activate/deactivate ALL button" on top of the pages site - email - push. 

Or is there a certain 'hidden' reason why such a button is not included?