Hi Michael

Scaling rail is neat, I haven't seen this before in other CAD software.

Yes, the good ol' machine has paintbrush:)

Whish:
view capture (since its effective for communication of ideas, it ought to be always fast to do)

Ok, when you go to File>Export, there you could have PNG file option that saves the current Viewport as a PNG.
It wouldnt lead to any more buttons or anything.

-Fredrik