The windows in this complex come with several options that you can utilize.

To change the windows, simply click on the switch which is located beside the door.  Each controller changes the widnows only for it's assigned unit..

Your options to choose from include tinting the windows with the blinds, to either invisible, Medium, Dark, Open and Closed.  Additionally, you can choose to change only the inside, or outside as well as both sides of the window.