Thanks for replying, Jordi.
Does Note Range Min and Max not refer to which velocities get processed? (Just guessing as they have values of 0-127.) Or if those do let you target just one area of the keyboard, wouldn't that make it an on/off thing (bottom part of keyboard doesn't get compressed, top part gets compressed uniformly) rather than gradually having more effect as you go up the keyboard?
Just to clarify, I need this to kick in gradually from note D5, with the velocities getting more compressed as you go up to F6 and then levelling out. And ideally I'd like to be able to draw any shape across the keyboard to even out patches that have louder/quieter areas.
Obviously it'd be nice to be able to do this from within the virtual instrument, but NI Scarbee is pretty basic control-wise.