Notify Button when Selection is Completed

A button at the top and/or bottom of page to notify photographer when done selecting images via email.

I always tell clients where and how to change the status. Clients do not ever notice or remember to change current review status. They are expecting delivery ASAP and I'm not sure if they are finished. I have to always double back and make sure I contact them in enough time to make sure they are completely done. So I am not late for their expected delivery.