Hi, just came across this question as I have a similar requirement.
I have a custom form control which has a button allowing users to do a Quick Archive (which effectively moves the content page into an archive folder). I have been able to successfully refresh the tree using this method but I also need to be able to refresh the form page so it picks up certain other changes related to the operation (such as visibility of other fields etc). Currently I have to manually reload the form tab after the page is moved.
Is there a method that will do both a tree refresh and a form tab refresh ?