Roof for bay window? (How to make custom roof)

[ndbs]

Hello! I'm using the "Picture window" element that I downloaded from one of the free libraries as a bay window in my plan. I can't figure out how to draw the roof over it for the exterior of the house. It would be like a trapezoid shape in the middle with two triangular sections for the side, all leaning up against the side of the house. How do I draw a custom roof... can someone point me in the right direction?

[Daniels118]

Read this article:
http://www.sweethome3d.com/blog/2017/12/08/additional_contributors_libraries.html
scroll down to the "Roofs, windows and framing" section.

Also take a look at the Roof plugin by Dorin Vatavu:
http://www.sweethome3d.com/support/forum/viewthread_thread,11330