Apple Logic Pro /LogicExpress Discussion

Hey Guys,

   I'm in the middle of five projects, and don't want to upgrade to 9 until it's done.   I've been pondering the beauty of the audio quantizing and had a few questions:

     Can I use it line up backing vocals to a lead vocal?   So, can I designate transients of the lead vocal as the "ruler" as opposed to the session grid?

      The vocalign plugin comes to mind I guess, as I understand it.  That sort of thing.

      Pete