Hi Dan,

Is this the kind of thing you want to measure?



I got the 2 components of the compound angle by aligning the orthographic planes first with one of the object planes and then the other object plane. I constructed a helper line (yellow) at the intersection between the 2 planes using Construct > Curve > Isect. Then I did View > CPlane and in the 3D view snapped to the helper line and one of the planes and adjusted the orientation picker in the 2D views. I added a measurement using Dim > Angle. Then View > CPlane again for the other plane.

- Peer