Smedberg,
Jalcide reports that it doesn’t work for him. I thought I’d point your posts at each other so we could figure out what you’re doing differently that results in your success.
Controlling group faders
Steinberg Hardware
Jalcide, Smedberg appear to have had success with this. Thought I’d point you to his post to see what the differences are. http://www.steinberg.net/forums/viewtopic.php?f=226&t=69874&p=405282#p405282