Can user initiate scripted imaging via NAL ?

Hi,

I would like to allow my users to "schedule" a make image of (and later
restore) their windows system partition from a file stored on a hidden
local partition. I would also like to give them an icon so they don't
have to use the maintenence mode or img command line.

It seems that it is possible for a user to initiate a Zen image by
filling out the "zenimgImage" property of their workstation nds object
with the img script object name? Then if they press F12 at the next
reboot they will make an image of their current system.

Could I make a NAL object to do this?

What would be the best way to give users the rights to modify
the "zenimgImage" property of their current workstation that wouldn't be
too excessive? Can I do that with a NAL object too?

thanks for any thoughts...
Ray