I'm having difficulty positioning an exterior door in a 600mm thick stone wall. I want the door to swing inwards but when I use the edit handles to do this, I end up with the hinges on the interior of the wall. I want them inset about 100mm from the exterior.   Home Designer Pro 2017 provides a facility to inset windows in a thick wall but I can't see any way to do the same thing for a door.   Any suggestions?