Paul,

Way cool song! I think you could do this with a sort of convoluted work around. What you're trying to create is the sound of 6 on 4 beats, so to speak. I think if you would insert two bars of 3/4 time in the place of the one bar where you want this effect, and then adjust the BPM of these two bars so that the 6 beats sounds in the time of one measure (BPM of song multiplied by 6/4 or 1.5). For these two bars enter your chord as shots - for example "Bb..,Bb.." in first cell, and "Bb.." in the second cell - for both 3/4 measures. Then, you've got to tell BIAB to go back to your normal BPM and 4/4 time in the following bar.

This will not look right at all (if you're using notation), but it should sound right.

Wow, now that I've thought this thru, I may have to give it a try!

Good luck,

Bruce

Macbook Pro 2018
2.6 GHz 6-core Intel Core i7, 16 GB RAM
OS Monterey
BIAB for Mac 2022