There's no way to customize the midi CC. It's fixed. Also, if you're looking to use the buttons, many of them are the same CC as other buttons, which I think cuts the number of buttons in at least half or something.
Nope, your eyesight is perfect. The CC#s are hardcoded to the hardware controls. You have to change your library software to learn the embedded CC unfortunately. I did another post all about that. It's frustrating but PreSonus never intended this to be a CC controller, I'm amazed they even responded to the forum where we kept nagging them! To me it's worth it, those faders feel so nice compare to my M-Audio CODE61.