Dept of Sneaky Tricks

[RMorrison]

vector overview of house, send to layout. Grey out lines and patterns with layout editor. back to overview, change layersets or layers to show new floor & rafter framing (wall framing is overkill for the graphic). Send to layout. line up both layout boxes if you move them around and need to. clean up. voila!

That's a very cool technique! (I'm a little confused about the framing at the chimney, though. )