There is an existing song form feature in BiaB. It’s under the edit menu, form, song form, That isn’t a tabbed chord sheet. But you define sections as A,B,C... etc, and can then just type AABACBAA and the song gets rearranged like that. And change it to ABACCBA. You get to see the whole composition on screen at once, unlike the tabbed chord sheet that only shows part of the song,

Here’s a video about the song form maker
https://www.youtube.com/watch?v=HxD4tquRQOM


Have Fun!
Peter Gannon
PG Music Inc.