We released a new update on Friday with support for side and rear windows. If you already released a few repaints this resource might interest you. Check out this guide for updating your existent repaint with full support for side and rear windows:
http://steamcommunity.com/sharedfiles/filedetails/?id=862578859
Oh and by the way, some people asked us when we're going to release the Neoplan Skyliner DLC. Well, here's the answer.