Disable / enable tracks has the potential to be a really transformative feature, especially for those of us who use big templates. Aside from the current bugs, I thought of a few things that would really help workflow wise, and have added a feature request here - http://www.steinberg.net/forums/viewtopic.php?f=228&t=86341 . Any +1s and additional thoughts over there by anyone who thinks it would be useful appreciated.