My right rear window is stuck in down position how can I get it back up till i can get it to the shop.., the mastee door switch still working the other three rolls up and down no issues

 

Did you try the switch at the right rear door?
Did you try grabbing the glass and assist in its movement while pressing the button??

If that does work then you have to take off the interior panel covering the door and manually work the window up.

Good luck to you