I'm creating a hex mesh from pretty complicated geometry and I can refine some holes if I make some strategic cuts.  I want to be able to use the contour mesh available on a surface to add cut lines.  So let's say I had a "C" shaped cross-section lofted to an "h" without the bottom left vertical line.  I apply the contours which only appear to be in the freeform editing option.  I want to copy one of those contours to a 3D spline/line for face and part splitting purposes.