If you want to have a real organ software you should you to look to another way: "Hauptwerk", before by crumhorn labs and now by milan digital it is the the ultimate sofware that you need for play organs, You could tune up every single pipe !!
Manuel Torregrosa
http://web.mac.com/manuel.torregrosa/
"Only for Organ and Orchestra players"
this is a little off-topic.
i think everybody who uses Konzerthaus Organ is absolutely happy with the sound (at least I am), this thread is just about altering the user interface so that combining stops becomes faster.
you can do anything you want with Konzerthaus Organ right now (even "impossible" registrations), it´s just that some action has to be done in Logic, Cubase or whatever, thus slowing down the creative process.
(erm... well, you can´t tune up every single pipe with KO, but that´s okay for me... 😊 )