You can select an H9 preset 1-99 by sending it a PC (Program Change) message from 0-127 over MIDI. You can remap those PCs, and increment & decrement to load up the next or previous preset.
MIDI CCs (0-99) are mainly intended for variable parameter control, or switching states. You can also use them to increment & decrement preset positions, with or without actually loading it (cued up).
I don’t know of a way that you can use a CC message to directly select a preset. The H9 would freak out if – for example – it received a burst of continuous control, and tried to load a new preset for every incoming value.
