Insert windows and doors on Sweet Home 3D?

I use the app for 2 years on my laptop "Sweet Home 3D" the free version. I always work on a big villa when I have the time. My problem is that with me the windows and doors do not go "in the wall" so that you can see them from both sides (like a real door), but either on one or the other side of the wall. All my windows, for example, you can see from the inside but from the outside it is just a normal wall. Can help me jmd?

You have to pull the window on the wall in the planner, not next to the wall

I always try but it jumps right over to the other side of the wall then