Gambrel-monitor type roof design

[madcowscarnival]

Is it possible to define this type of roof over an open room in one fell swoop?  Or does it need to use invisible walls to set the gambrel roof, the typical shed at the "wings".  I really just need to make it for an elevation & roof plan, then let a truss company come up with the actual design.  Thought it might be ... interesting ... to see if I could define it for CA to handle all at once.

[madcowscarnival]

[Garybills]

You can get the two lower sections with auto roofs by setting the side walls to have upper pitch, but then you’ll probably have to manually draw the upper section and adjust the center section. 

[madcowscarnival]

Well, I cobbled it together with invisible walls, couldn't quite get an autobuild going, but once I set the roof to my liking, CA sure made some nice looking trusses.