auto contour creation
I would like to pick a line or arc and drag it. While I am dragging it, contour line would be created in staggering intervals. so, the person using this would drag a line to the center of what would be cylinder or curved surface and the would see 3 lines or arcs ghost out from the copied line. The interval of the lines would be 1 unit of distance then the 2nd line would be 2 units, the 3rd would be 4 units and there would be 7 units between the last line and the final pick point. The lines would also be slightly smaller in thickness than the line copied. No other drawing software does this that I know of.