This should be a must in reason. Well atleast for me. I use samples that are live in redrum and they are long, so when I want to adjust levels of something I have to hear it over and over until I get it right. The problem is with these long samples that I use I end up saving what I am working on than closing reason project than reopening it.....over and over. I think there should be a kill button, panic button, whatever, to stop all sounds and samples. The stop button doesnt work because (like I said) if you are using live samples than they just keep on playing. Please think about this, my computer and I would appericate it.