Probing a workpiece and correct axis formula

[!!ti!!]

I'm a newbie and try to simplify the process of

1) mounting a workpiece with a rough alignment to the axis
2) probe at least one edge of the workpiece with at least two points
3) correct the workpiece orientation by setting the values in the mach3 "Formula axis correction"
4) mill the workpiece (in several steps) without the need of a perfect mounting

What is the correct or better way to do this?
Is it possible to set these axis correction values programmatically in a script?
How can I setup mach3 that these values are respected when I jog around?

[BR549]

Check out the Gcode G68 coordinate rotation

[!!ti!!]

Thanks, that's the thing I was looking for. I verified this in the Mach3 simulation mode and it worked.