Hi, I’ve been in a similar track, and at the end I didn’t go for an external device, but a single display that receives from an app on our PC (I used Java but it can be anything really). A bit later I found out that the advantages of creating a utility to show parameters was not even something important, since we can design the MIDI Remote’s UI in a way to almost perfectly fit the display. Anyway, here’s a photo of my setup with the display I’m talking about:
And here’s a photo where we can easily have other stuff as well (in this case the track presets browser):
I just found it more handy to use the native windows of Cubase, instead of getting into using my external app.