Because it's 3D file and the shape is in a generic position, it's a bit more complicated, but I guess creating the correct element using "region by flooding" should work (at least it works if done manually).
You have to test the shape for planarity, calculate seeding point (usually centroid) and to define normal (which is the same as of the original element).
With regards,
Jan
You have to test the shape for planarity, calculate seeding point (usually centroid) and to define normal (which is the same as of the original element).
With regards,
Jan