one of the items I was missing in HD is a serie of Splines whith more than two-or three entrypoints. ( Each click on the mouse create an entry-point while drawing and p.e. esc finisch the line.
Like :
- Trough-point B-spline .
- Vector spline.
- Bezier spline
- freehand spline.
With the option to add later entry points and when moving a entry point the created curve follows the points.
I found this utility in a 3D-CNC-Cad program and found it very usefull .