first thank you for HiddenLineDrawing! Its a great addition to V6 - worth the update!
I have some questions / suggestions and start this new topic, since you’ve closed the initial thread.
Is a way to get the result of the calculation as non-transformed curves?
(Edit: Right now I get it with the inverse transformation of the non-flattened result.
If I’m not missing something then there should be a parameter Transform = False?)