If I understand you completley.The feature you are looking for is
RENDER AS... which is under the file menu.
:-)

Chris Albertson wrote:
>>Hello all.
>>A nice feature of another form of audio software I'm using
>>is being able to make a stereo mix with all effects,,etc.
>>(mix to new stereo track) and then being able to Archive
>>those tracks (minus the new Stereo track) so my processor
>>isn't having to play them all but it still saves all the
>>effects and any envelopes I've used so its just playing my
>>stereo track like a sub mix. Is there any way to achieve
>>this in Vegas, without me having to delete my tracks from
>>the project to help with processor speed. Thanks for any input!