How would I know? What would I have to do to get it?
What I do know is this. When I have a windows machine that needs to be added to domain, the domain admin will use their username and password to add it to the domain. I will then (from the administrator local account) goto control panel and add my domain account to the administrators group. At that point, I can login as myself and am able to control everything on the windows box.
For the NAS, I had the domain admin use their username and password to join the NAS to the domain. I'm not sure how to make my domain account an administrator on the nas itself like I can thru windows control panel, however I determined (through lots of trial and error) that if connect to the nas thru AD from a windows machine (start/run \\name), if I make a subdirectory of a subdirectory (i.e. in PUBLIC), then I am able to change permissions on that subdir. I couldn't figure out how to change the permissions of PUBLIC itself, or to rename PUBLIC. I can create another folder in root (a share) from the webadmin named whatever I want, but still can't figure out how to change permissions on it, still limited to only changing permissions on its subdirs.
When I say permissions, I'm talking about which users have access, etc... I think permissions is the right word. But even with what I've figured out so far, I still haven't been able to figure out how to copy from the windows machine to the nas while keeping the same permissions, even when using a subdir. I have been trying to do this with robocopy. [I also experimented with permcopy, but permcopy isn't meant to work on subdirs of shares anyway, and since I haven't even been able to figure out how to edit permission on the shares manually, I didn't expect it to work automatically].