Is there any way to mass delete Notifications that pile up other than one by one? If not is there anyone that cares to make one for 4.7 ?

Thanks

There is no way in which to delete notifications. These are automatically deleted after a period of time determined in your admin CP. We would not suggest trying to delete these manually. If you go to Members->Member Settings->Notifications within your admin CP, you will see a prune settings button in the top right