Drum fills...

These are created by the part markers. The part markers are blue and green boxes around the bar numbers. Drum fills play in the bar immediately before the part marker.

If you have a look at the video of the chordsheet of my below song...

https://vimeo.com/143978481

...you'll see that bars 1, 5, 14 (and others) are enclosed in blue boxes. Bars 23, 49, 58, etc. have green boxes. These are the part markers and they tell BIAB two things:

1. put a drum break immediately before the part marker;

2. the style variation to play.

The green part marker introduces a style with more movement. I tend to use for the chorus. The blue part marker has less movement and suits verses.

BIAB keeps on playing in a style's variation until it meets another part marker.

Hope this helps.

Also,

There are a number of video clips at the below link. (I'm guessing that you probably have Windows BIAB.)

http://www.pgmusic.com/videos.bbwin.htm

The beginner videos are a good starting place.

Regards,
Noel

P.S. Please don't hesitate to ask any question whatsoever. There are lots of people on here who will help you out.

MY SONGS...
Audiophile BIAB 2025