It would be nice to gray out the out of scale notes on the DT keyboard without shifting the whole keys. So if C is not in a scale, it is gray out but the C (step#9) stays at its spot. I am learning music theory so I maybe don’t see the point of changing keys positions.
Example: in the C scale the step 9->16 are the white keys on the keyboard, starting at C. But if you change the scale for aeolian F4, the C became a F, why that? I’d prefer to keep the keyboard as it is.