Sorry if these are in Beta 3 I haven’t tried it yet. First is the Content Mask you have to check or uncheck each one, why not hold down the mouse button and move over them to change them. Second, I compose on my computer keyboard all the time so there’s volume changes. Why not use the Content mask in re-recording the volume changes with my synth. Third, the humanizing feature could use an envelope to choose the percentage within a pattern.

You can use right-click to solo/unsolo all flags at once.