I have two video tracks.  Track 2 is an hour long continuous that will be used for the majority of the video.  Track 1 is a series of shots that I want to insert.  I set it up this way to save myself some editing time.  Rather than using 1 track and utilizing auto-cross fade, I want to cheat by getting the same result (an auto cross fade) but using 2 separate tracks.  Am I making sense?  Track 1 is a bunch of snippets that I want to cross fade in and out.  Currently if rendered, the file will obviously just cut from Track 2 to Track 1 whenenver there is an event in track 1.  I want the media to fade in and out but I don't want to have to go to each little snippet and drag the opacity.  
Is there a way to auto attribute a 1 second fade on either side of a series of clips?
Thanks.