As alternative, you could try to create the section as a 3D document.
- use an axonometric view
- use a 3D cutaway to create the section
- use the "Look perpendicular to clicked surface" under View/3D navigation extras - to create a section like view
- create 3D document under Document/Documenting Tools
- under the 3D document settings set dashed line type for hidden edges
Szabolcs Mikó
Education Program Manager