To fix the display issue, you have to turn off "Table Display" in Mach3 :)

Next -

I have code for a part that needs to be run as batches - same code with a break to reload the stock.

How do you stop the pointless tool-change but still maintain the tool length offset??

Code starts like this...
(1)
(T1 D=12. CR=6. - ZMIN=-10. - BALL END MILL)
N10 G90 G94 G91.1 G40 G49 G17
N15 G21
N20 G28 G91 Z0.
N25 G90


(2D CONTOUR2)
N30 M5
N35 M9
N40 T1 M6
N45 S650 M3
N50 G55
N55 M7
N65 G0 X-2.546 Y13.069
N70 G43 Z10. H1
N75 Z2.
N80 G1 Z1. F180.
N85 Z-8.8 F135.
N90 X-2.54 Y13.063 Z-8.934
...