From the Icon site:
“The Lower LCD Display On My Pro X Doesn’t Bank…
This is typical behavior for the QCon Pro X. The lower LCD display is designed to be used with the QCon Pro XS extender to help coordinate the order of units and tracks to allow users to arrange their units in any order they’d prefer. “
That’s pretty useless, you’d set this up once, and you can rearrange this in Cubase as well.