hi all I have got my cross sections where I want them, but now working on the line type. The picture on page 52 of the Therion book shows the type of line indicator I would like on my plan, but I cannot find a way to do it. I have a solid line across the plan with a arrows on, but cannot get it to hide the bit in the middle. I've tried -place bottom but this seems to make no different While searching the book, examples and wiki I have come across a couple more things that I cannot fathom the instructions for On the section line, all the other direction options work but I cannot figure out -direction point I get the error -- no line point specified and I cannot find a way to specify the point. also in the book p27 note 24 "Line showing cross-section position. If both control points of a Bezier curve are given then the line is drawn up to the perpendicular projection of the first control point and from the projection of the section control point. No section curve is allowed." I cannot work out what this means hoping you can help thanks Andrew