I was scrolling through a notification email and accidentally clicked on "unsubscribe from notifications". It did so immediately instead of asking if I was sure I wanted to unsubscribe (like most other programs do). I don't know how to subscribe again, it is on a row that I have a task assigned so I need to be able to see when people comment on the task or make other changes. The notifications set up in the sheet are very generalized, for example: "Notify contact in column right away when changes are made". This is a shared sheet for 30 people. Help please!