[Feature Request] Layers lock, Keyboard shorcuts, Boolean, preview

[in3des]

Hi!

Thanks a lot for the cool software!
Downloaded it just yesterday and already switched my workflow to use it for retopology. It’s very quick and making great results!
Here is small list of features to make life easier :)

1. add keyboard shortcut settings. This would save a lot of time!
2. would be nice to have layer lock (so you cannot make some modification by mistake).
3. add some Boolean operations (cannot find this option trough menu)
4. some preview for Remeshing or at least 1 step Undo - this is hot one.

Regards!