I am porting a patch from Max 5 to 6. I have an Audio Unit plug in with an instrument that has many presets. In my original patch, I had a message box with a number, refering to the preset which worked well. The old audio units seems to be different,because when I want to change preset now, with a message box carrying a number the preset does not change. Could I have some help to know how we address preset changes for audio units plug ins please.