Thank you mule13
It seems to solve the problem.

I would love to know what all can be adjusted from MP0. So what do they all do or mean?

I have changed the entire surface of the table, because the iron table were several millimeters crooked. At first I used a long 65mm milling tool and milling the entire plastic part off and the iron table machined straight. I glued the plastic surface and machined it straight. I made the grooves on table whit extended 10mm mill tool.
Program I made whit G-code in the editor.
Program will be opened on screen menu “SPG”
Enter the program name

Attachment 276980
Slot Milling program if I remember correctly now looks like this:
G90 ("absolute" programming)
A0B0 (A and B axis to zero)
M35 (Pin in)
M3S5500 (Clockwise 5500 rpm)
G0X0Y-2003.6 (rapid traverse x200 y-axis to center of the y-2003.6)
M7M8 (water on)
G1G91Z-59F2000 ("incremental " Machining motion 2000mm/min z-59)
G1X3000F750 (Machining motion X3000 750mm/min)
G0Z59 (rapid traverse z59)
M5M9M13M45 (stops the spindle / off water / water off / pin out)
G90G0x0y0 (rapid traverse x0 y0)