I know that the lead in option is only available when playing the song from bar 1. However, suppose I wanted to create a series of 4 bar chord progressions to use as teaching examples. Is it possible to create the effect of an audible lead in anywhere within the song? Basically, I want to instruct BIAB to play 4 beats of stick only in specific measures.

So instead of having 4 bars, I'd have 5 bars. The first one being the work around lead in, with the following 4 the actual chord progression.

For example:

Progression 1: bars 1-5
Progression 2: bars 6-10
Progression 3: bars 11-15

So I would have my work around lead in bars be bars 1, 6 and 11. In those bars, I'd only want the drum stick to play for 4 beats. Can BIAB accomplish this? If so, how? Thanks!