I guess everybody who uses the Konzerthaus Organ has its own workaround on how to make registrations. Mine ist most similar to yours. But every one of those workarounds is - surprise - just a workaround. It would be a piece of cake for a programmer to make a user friendly interface, because all I long for is more more more layers (add graphics from the organ, and I´ll be crying with delight). Understandably, Vienna Instruments are not designed to layer staccato-, legato-, crescendo-, pizzicato-patches and more (plus maybe the sordino versions), so this feature would only make sense for the organ.
I would be willing to pay 50 bucks for such a feature, and if 100 or more users would do the same, the programming would be sufficiently rewarded.
Add the rest of the stops, and I´ll pay 100.
This is a petition. Please sign. :)