FabFilter

Is there any way to change the sensitivity of the Mix knob in Pro-R?

I typically use values between 2% and 6%, but I find the values produced by the Mix knob in this range to be far too coarse. I usually have to input the numbers manually.

It would nice if there was a way to make this knob more sensitive (less coarse) in the low range and less sensitive in the high range were differences of 10% aren't that noticeable.