Hi, Lee
In screen4, double click on 4 th axis dro, brings up dro control the text %+.4f controls the window, the 4 is for 4 zeros to the right.
Haven't been able to find Doc's that exp. it's exact use though.
If your trying to calibrate in deg's then step's need to be number required to move 1 degree, in motor tunning, steps per.
Thanks, Chip