The Generic Z-Wave Shade driver is one of the built-in drivers. Nothing to install. If it's not automatically selected when you pair them, if it just pairs as a "device", you will need to select the driver from the device page.
I was able to pair the remote control to Hubitat as a Somfy 2-Button Controller and then use it to control the shades (or anything else - since it is really just a generic 2-button device).
I have Lutron so I have ended up using Pico remotes for most of my shades. The Pico has 5 buttons and I have it set up so the 5 buttons are (1) Full open, (2) 25% closed, (3) 50% closed, (4) 75% closed, and (5) Full closed.
Some more information here: Shades - what works? what doesn't?
