Trying to find a solution for :
http://activewidgets.com/messages/2112-1.htm
I recently found a trick into what I call "Vertical-AW grid-Form", that is the same as "reverse mode" but using it for edit.
see:
http://activewidgets.com/messages/1991-1.htm
This not only let enable-disable some rows for editing , but also some fields too (by modify the pickrecord() function), so its something close to user "rights" for modifying.
Hope this help.
Thanks