The slide keyswitches (for moving up and down the fretboard) work and sound great in the Ample Sound guitars, but that is different than a bend (of a string). It would actually be nice to have a couple keyswitches for basic 1/2 and whole bends, but as it is there is just the standard pitchbend wheel which I have always found tricky to work with in every VSTi. When I ran across a good sounding pitchbend in a Guitar Pro tab it got my hopes up thinking the Cubase score might have similar functionality. Sadly the pitch bend isn’t included in the MIDI out of the instrument either or I would try to grab it and reuse it that way.
Edit: you fixed your mistake while I was posting 