I need to add to this, because my assessment of what is happening is inaccurate. In BiaB, when I change a single bar to 2/4 and the following bar to 4/4, the score gets adjusted correctly, but the chords do not. The second half of the bar that is now 2/4 is now disabled, and the chord change that was set at beat 3 in that bar sits there disabled. That chord change needs to be pushed to the next bar along with the score. Why does it push the score along but not the chords? The question is how to push the chords. If I try to copy from the disabled half of the bar I've made into 2/4 through to the end of the song, and paste into the start of the next bar, it copies from the start of the 2/4 bar, which achieves nothing. I don't see a way.