My BED is off center - How do I reset the ZEROs

When I try to used the bed level option the machine homes itself and then the probe is off the table by a 1/4". I have overcome the centering issue in CURA, but this doesn’t help with leveling my bed after I’ve touched off on all four corners and zero’d the nozzle to the bed. Can someone please help? I’ve searched youtube and everyone wants to center using your slicer software. Being a machinist for 33 years, this is driving me crazy that I can’t find the info needed.

Since the toolhead is all but standard on this Ender, has the firmware also been changed? Since when does it do that?