@WrigleyS
Sorry I misunderstood, lead on by the Topic of an existing Thread.
Search this Forum for Dimensions. A feature that would enable these details to be inserted, in 2D and 3D output, as required would be most welcome.
There is no way to achieve your objective without a fair amount of selecting. I sympathise with the task you face, and for thast reason have not attempted to create a Building Cross Section. My interest is Dimensioned 3D output to convey details for the Workshop. Achieving this is not cost effective and the outcome is less than satisfactory.
Section View will not allow Projection of it’s Edges and only Faces of non-section objects, the workaround is to ‘slice’ the Bodies in the manner suggested in:
https://discourse.shapr3d.com/t/intersect-face-and-plane/7031/10
Then Select the relevant Faces, Project onto a Plane and then Add Dimensions, see:
https://discourse.shapr3d.com/t/wood-working-export/6965/2
To present a dimensioned Sketch:
Or via a DXF Viewer:
