Try the "Unfold to one long song" command and then make sure that there are only Blue "A" part markers on the entire chord grid. Click on part markers to change them to green (B) or click again to remove.

A part marker also forces a Drum Fill in the previous bar, for reasons of transition.

Sometimes you can spice up a single part performance by adding more of the same color part marker in strategic places to force a Drum Fill without changing the substyle.


--Mac