[Finale] Finale Win 2k2 - Parts for multi-instruments

[mn]

Hi, I need this info: I'm writing tunes for 12 pieces jazz band, in this band me and two other reeds player handle much than an instrument with different pitches. I usually write everything in concert key on the main score, then let Finale do the rest for transposing. So the question is: which is the best way to write parts for, let's say, an alto sax that plays also clarinet in a certain section of the tune? Can I say to Finale to transpose two different ways in a single part? thnx for hints Marcello