I realise that you have a road-map all lined up and I have looked at it but I would like to suggest a slight change in priority. I believe that putting in a few basic drawing tools would allow drawings to be completed in fusion without exporting to other programs.
Bare minimums I would suggest: Line, Bezier Curve (or some other kind), Delete Area, Drag/Move Selection
These would make life a little easier: Fill, Box, Circle
With those one could put in their own breaks, indicate knurling, or put any number of other features you might want to indicate only on drawings. Even just line and curved line would provide a huge amount of flexibility. Maybe you could reuse some of the sketch code?
Respectfully,
Theo
