You are quoting me out of context…
At least 2 other options were proposed but, in that thread, the OP didn’t return with the specifics of the problem.
Please post a 3dm file and a description of what you are trying to achieve.
Sorry for the late reply, I lost faith…
The roof top is desintegrating…I mean, is one of the options “OrientOnSrf”?
That doesn’t allow to project a scattered selection would it?
Does the other one involves creating one of those Grasshopper confusing node bundles?