I second Fratveno's Feature Request for a stepper. He's said it all for me also.
I've bought this superb library and ... well ... like Pyre admitted, tears have been involved for me too, as well as thrills, joy, inspiration and profound satisfaction. Thank you so very much, VSL.
I have a 61-note MIDI controller keyboard stacked closely above my main 88-note keyboard, and a 17-note Studiologic MP-117 pedal keyboard on the floor. These are enabling me to have tremendous fun with the the Great Rieger. I also have a Yamaha MFC10 MIDI foot controller board which includes a swell-type pedal, but I don't (yet) have enough clear floorspace to place it alongside the MP-117 so I might buy a separate MIDI swell pedal for now.
Also I've been trying out lots of multi-channel spatialisations, special Fx, etc, by routing the Organ Player's mix channels out to various aux channles in my DAW and - oh man - getting some really stunning results with my plugins. [Edit: When all factory audio fx are switched off there's no audible baked-in hall reverb at all!! So the Gt. Rieger library is infinitely accommodating for the user's own spatialisation setups ... and I am now seriously spellbound!]
I'm sure it must be illegal these days to have this much enjoyment, lolol.
Btw, I know it's very late (perhaps too late) to be suggesting this, but for a musical opener in one of your Great Rieger promo videos, VSL, can there be a better and more instant attention-grabber than the opening of this astounding piece by Max Reger (especially when played with the dramatic flourish of Roberto Marini, as here at the St Florian Basilika in Austria)?