Fagor G codes

Good Day All,
First time posting here, so I have an older machine with a purpose built CAM that outputs in Fagor G-codes.

For example,
G74X= reference X axis in Fagor
G74YZ=reference Y,Z axis in Fagor
This would seem to be G28.1 in Linux?

I was looking on Hellman CNC. It seems Fagor's list is substantially different than the Siemens/Fanuc I'm most familiar with.

Is there an easy way to "swap out" the G-code config for the Fagor list? Or do I need to "remap" each one? I don't have the luxury of editing this purpose-built CAM, so I need to work with its outputs.

Thanks in advance,
Linux_newb