I also think this would be nice. Currently you have to freeze a track to render. But what if you have FX that you don't want to freeze. Then you have to bypass the bin... then once it's frozen, unbypass the bin. Plus you currently can't even freeze more than one track at a time. Changing the tempo of a song pretty much sucks... it takes so long and you have to sit there by the computer for every second of it...