Maybe it was not always understand what I wrote previously, I told you I do not speak well. Now I try one at a time, perhaps in no particular order, I'm sorry.
It was a point
4. Elevation / A
I solved the horizontal section problem very easily.
I import an "invisible cube" (SketchUp library, .kmz), I tick the window checkbox "doors and windows" into whether the size 100x100x100cm.
I open the project plan, and sets the aerial view.
I pull into the "invisible cube" above left, and I'm going to the corner and pull apart what should be.
It is very important while pulling constantly pushing [Alt] key!
I set "invisible cube," I think. 130-140cm etc. can lift and the height above the walls of the well can be 200cm or more.
Results like this:
Aerial view:
Development proposal:
In it really would be a good development if there is a slider in the window, adjust the height all walls.
I hope I was clear, and so they were able to use it! cool
Karoly