If you want to have the numbers line up, I think the only way to do that would be to change the MIDI program change receive map, and you would need to do that one at a time. You can find that in H9 Control under Pedal / MIDI Settings / Program Change receive map. You can do it on the H9 as well; the user manual explains how to do this on the H9.
If you want to shift all of your presets up by one but you don't care about the numbers lining up, you could insert a new preset at the bottom of your preset list in H9 Control in the Edit List screen.
