I am not sure entirely what you are tyring to do, but here is what first came to mind.

If I wanted to create a BIAB version of a tune:
For a simple song I would start by directly entering the chords
Listen to the song over and over so you know its structure.
For the Dylan tune, Sounds to me like a series of verses and a single chorus: A, A, A, B, A, A, A, A
Since this is a little odd for BIAB I would enter the entire structure fo the who song instead of using repeats.

I would start this in 4/4,


THE BALLAD OF A THIN MAN- Bob Dylan

Verse
Bm Bm/Bb
Bm/A Bm/Ab
G Em
D F#m Bm
D F#m
Bm G Bm

Chorus
Bm Bm/A
G Bm
Bm Bm/A
G Em A A7

Then you have to set the tempo and Key (if Bm don't word for you). Next a style. This is always a searching exercise which takes a little time. Or you can go directly to a RT if you know somthing you want to hear.

Not sure this is what you are looking for ? But I did enjoy listening to Bobby D this morning.

<<I had those chords all spaced out so nicely, then the viewer crunched them all together, but you get the idea.>>

BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, Motu Audio Express 6x6 - My SoundCloud (Tip: No need to create a SC account to hear music - just hit ESC ).