Hi
I watched this clip about the original Dimension Brass which I have had for a number of years, and especial the Auto Divisi function, where you can play chords and have them distributed to different instruments.
If you have 4 horns, you will able to play a chord with 4 notes and VI Pro player will automatic distribute each note to horn 1, horn 2, horn 3 & 4!
Is it possible in the new Synchronized version?