Hi Planer,
I see now what you meant. I made an exterior wall in the top floor and then right-clicked on properties to change the side wall type to dormer. It worked, but now I am not able to connect the side wall's corner with the dormer gable wall corner.
Also the left side dormer wall in the leftmost dormer is a continuation of the exterior wall from below, broken by the roof SIP panel so i overlapped a dormer wall on top of this exterior wall from below. It works, but I wonder if this is the right way to do it or will I have some unexpected problems later on. Also, I have the same problem connecting the two corners.
When I use the "wall connection options" in the dormer editor it doesn't seem to do anything other than close up the opening in the middle dormer!!
cheers,