seems you didn’t actually include the manual page … or link doesn’t work for me.
anyway, sounds like its using NRPN, which few things will automate/control
if you want to do this with hardware only (i.e. no computer), you’ll need some kind of intelligent midi router, that can modify midi messages , in particular convert nrpn back and forth to midi cc.
I personally would use an axoloti (axoloti.com) , as its cheap and flexible, but needs patching (like max/pd), so that may or may not be your thing.
there is also the BomeBox, which allows you to mangle midi messages, so that would probably work… not sure if its much easier to program or not, but provides lots of interesting midi options
there could well be others, but those are two that i know of…
(you could also easily build something with an ardunio)