Gumball for N to have PointDeviation indicators change colour during pull

It would be very useful to see PointDeviation indicators change from red to blue as I pull gumball but nothing happens until I let go. I click record history and still nothing.

It would be much faster and more useful to see adjustment effects live

What do I need to do ?

In fact…
Gumball XYZ no good, I need a gumball for N, keep having to click left or right arrows for N in MoveUVN dialog box. I shall wear my mouse out !