attic remodel

[draitp]

OK. I'm back at it and things are not getting any better. My dormers are a continuation of the main roof ridge and slope but I can't get the dormer tool to fit a dormer that big on the roof. I went with the largest dormer I could fit (see pic) and tried to fit the stairwell under the dormer as per your instructions yesterday. However, I could not get a wall of any kind to continue under the edge of the dormer.
So, two questions. First how do I get a large dormer (I need one 70" high but can only get 50"). Second, how do I get a stairwell partly in the dormer.