First of all.. many many thank! Its so fast, so nice. Huge improvement.

A few things I found on OSX:
- The trackpad zoom is very very tiny. I set it multiply to 100 to even see it. However on larger models it get tiny again. So maybe you could make it more scene size dependent?
- Trackpad role doesn't work.. not so important. (Two finger turn, works in Blender).
- The Mesher in OBJ export doesn't remember the Angle after an export, so its set to default value again (12). Also it would be good to have these settings general saved, like last session or so.