1. There isn't any bulk update system right now. But you can update all your posts form association using this code below. Put that code on your theme functions.php, reload the page once and remove the code.
thanks for the reply. regarding 1. even thought it solvs part of the problem but I cant keep doing it every time. as I am importing youtube videos as posts automatically, And I won't be able to keep an eye on the number of videos being imported nor would I have the time to keep making sure every new video imported has the form enabled so my members can edit them from the front end.
so if there is a way to make it the default form then that would be great thanks