I don't know on 8.0 but it sounds the same.
Pick blank track if it gives you that option. if not pick the next track in progression. I mix down to a stereo track like this before exporting for a few reasons. 1: I mix it a little lower in signal to the stereo track to give me a chance to do (in this order)1: a final eg if needed. 2: normalize 3: final mix compression if needed 4: if you want normalize again to get peak signal without clipping.
This way I can make sure my mix is at peak signal level before I export to a wave file. also by mixing to a stereo track at less than peak levels I can do a final EQ with out worry of clipping, then normalize. I also edit the begining and end in a stereo track rather than edit 40 tracks seperatly. not to say you don't have to edit the tracks seperately but you can get rid of the dead air when it is in the stereo track, it is a lot quicker.
After you have done these things you can mute all tracks besides the stereo track (actually mute all other tracks before you do anything after mixing down), put the stereo track level to zero ( should already be there), put the master to zero then export the stereo track to a wave file.
Don't mix to the stereo track with too weak of a signal just enough to give you some room for slight EQing of the mixed down track without fear of causing it to clip.
I do not know if 8.0 has a normalize feature but, it finds the highest signal in the song and adjusts the signal of the whole song to where that highest point is just below clipping.
Hope this helps
F.S.
