torhus

I tried doing this by setting Control Destination to PROGRAM and using assignable controllers to control rotary speed. I set knob 7 to TREMOLO RATE and button 9 to ROTARY SPEED, and made sure they were enabled for both z...

I'll reply to myself, since I know the answer now. There are two separate slots only for modelled pianos, called SA and SB. While the A and B slots are only for the free expansions from the Axial website.

Try tone 1068 Applause, then use the HUMANIZER effect on it. It turns into something from a horror movie 😄

I'm getting an RD-2000, and planning to get the upgrade. But what if I want to free up the EXT B bank for other expansions after trying the upright pianos? Can I just replace that part of the upgrade with something else,...

It would depend on which MIDI functions and parameters you want to control, but the first setup seems more flexible to me.

I think that would be the FP-7F, but it's almost as big and heavy. I suppose you could try out the cheaper FP models if you want lighter.

On my RD-700NX I press the pedal while holding SHIFT, then scroll to 136: RHY PLY/STP. I guess the 800 should have something very similar.

Did you get it working? Another thing, you have to make sure Cubase is sending the correct bank changes according to the patch list downloadable from Roland, otherwise you probably get just GM sounds.

There are a couple of relevant settings, Part Mode and Live Set Ctrl Ch, see page 69 of the manual.

I'm sure there are some GX owners here, I have an NX myself. But you could also try over at The Keyboard Corner forum at musicplayer.com, more activity there. Hope you get it fixed :)