That's an old feature, but that doesn't use PC to control scene selection. It only lets you select a specific scene when selecting a specific preset. In other words, you would have to program a mapping for every scene of every preset you will ever use, and then reprogram your midi controller every time you change presets
.
To use a PC-capable midi controller to select scenes for
any preset, just like CC works, the AxeFX needs to be changed to be able to interpret a dedicated range of 8 PC messages as scene selection instead of preset selection.