Creating a Shed Dormer on a one story house with a low pitch for cathedral ceiling

[BAMFhomes]

Hey everyone,

Hoping that someone can help me out and be a hero today!

 

Designing a tiny modular home that will be 1 story since it has to travel down the road on a trailer. It's 12' wide and has a classic 5/12 pitch A frame. All of the ceilings are cathedral to add height to the interior. To add more light and a feeling that its larger I want to add 2 or 3 "shed" dormers over the living area and the bedroom coming off the peak of the A Frame. Since this is such a small space the "auto dormer" looses its mind since there isn't enough space for its defaults. Ive exhausted all the how to videos and still now help.

 

Anyone out there got a method to get this drawn in?

 

As you can see the exterior just looks average, but by adding a shed dormer I can add some windows higher up to add in some more light and height. Due to regulations I can not just do a single slope roof which would be my preference. It's got to be no less than a 5/12 pitch. Government oversight at its best!