Oh I thought in Melodyne Studio you could select two notes across two tracks and move them at the same time. Don't know why I assumed that, guess it seemed to make sense.
I've been doing visual time alignment with the suggested method too. VocalSync should help there, next time. Ideally, I'd like this feature within AudioSnap or Melodyne. At the very least a better way to visualize things as opposed to guessing, then bouncing, going back etc.