Management of frozen tracks is one area where Cubase is SERIOUSLY behind any major DAW. In Sonar X2, for example, I can click on a single button and almost instantly turn an instrument track into an audio one. Because a frozen track, unlike with Cubase, is a fully-editable audio track. In Cubase, a frozen track is a dead one, it won’t even stretch. Which means that you can freeze tracks only when you’re completely done with tracking and editing. I.e. useless.
I wish the people at Steinberg took this issue seriously, but from what I’ve seen, it’s been ignored for years, despite many people asking for improvements in this area.