When sculpting the terrain, holding "Shift" could switch to smoothing and holding "Ctrl" could invert the brush

[Arnklit]

Is your feature request related to a problem? Please describe. Switching back and forth between sculting tools is pretty cumbersome.

Describe the solution you'd like Like other sculpting programs. It would be nice if you could mostly just stick with the raise brush, but then hold down Ctrl if you wanted to lower instead and Shift if you wanted to smooth. I feel this fits quite well with the rest of Godot as well as for example the Path tool goes into the handle adjust mode when holding Shift.

Describe alternatives you've considered Another option could be to have some kind of keyboard shortcuts to cycle between the tools.

Additional context NA

[Arnklit]

In addition to this, maybe when holding down control and using the scroll wheel you could change the brush size. Don't know if that would interfere with anything else in Godot though.