I’ve worked out numerous of these problems. The octave issue was a setting on the controller itself.
There is a notable difference between using the controller in midi mode and as a hypercontroller. The later is fairly peculiar in Cubase 8, and I’m trying to figure out how to gain more control of the fader controllers. I have figured out how to reassign pads (for drums and such) and have gained some cursory control over various VST instruments with the faders.
Still want to know:
How to reset generic remote settings.
How to change the assignment of a fader without retaining its previous function.
Why what is supposed to be a volume fader in hypercontrol mode now selects different tracks instead of anything else I might want it to do.
There is seriously scant information about this online, and folks who have worked it out are strangely tight-lipped on the matter.