Hi LTran,
I'm not sure I fully understand. But Yes the "Set" button on basically introduces an G92 offset.
If you assign a C program to your "Touch Plate" button. After the C program does the probe operation it could then issue a KFLOP -> PC command to Set the DRO to zero or some other value. See the example:
DoPCFloat(PC_COMM_SET_X,0.0);
DoPCFloat(PC_COMM_SET_Y,0.0);
DoPCFloat(PC_COMM_SET_Z,1.25);
in the
KFLOPtoPCCmdExamples.c
Regards