Hello mangotee,
I found this topic since I am having the same issue for a different application (for which I’ve just posted another topic: Create equidistant curves on a given surface).
For what I’ve read, it seems that you managed to convert an “Open Curve Markup” into a “Markup Fiducial List”, in order to use it in “Markups to Model”. Could you please share the code with me or give me some instructions about it? I would really appreciate it.
Thank you very much in advance,
Alessandro