1 More Display Control
In Sketchup for example you can turn on different options like X-Ray, lines, shading. Also I don’t want a renderer bloating this wonderful program... but I would like simple materials like in Sculptris. Its easier to show the curvature of surfaces when you can use a reflective material.

2 Click on a point and change it between curve and corner.

3 Instancing

4 Live Symmetry (no copy mirror attach)

5 Through Points. Meaning, You can draw curves as either Control Points or Through Points. But it always ends up as Control Points after the curve is drawn. I want it to remain Through Points.