Having all the options available in on the box is great, but using in live performance it was easy for me to get lost switching back and forth between Bank and Performance modes along with the hot and foot switch options. Moving navigation functions to the OXU lets me assign pre-defined program modifications to the H90 footswitches, much easier to find in the middle of a tune. It makes the whole setup easier, which allows me to confidently use more features in a given program.