Hey Dave, a good place to start is the New to Midihub series:
After the READ ME they’re all hands-on
- starting simple with plugging Midihub in
- showing how powerful the
MIDI Monitorpanel is - then finishing with evolving a fairly complex patch (which includes a split-keyboard)
along the way, you should learn lots of tips and tricks.
Have a play with the Editor while you’re waiting for your greybox to arrive!