the question I asked was
"how do I format a text chord progression to copy it and paste into band-in-a-box"

the answer it gave included the advice to use a space or a comma between chords - however I found that didn't work at all. I could note paste directly in and the the "Paste Special - from Clipboard text to song(s)" requires the bar "|" between chords.

Something else (with Band-in-a-box not the chatbot) was that some of the bars with two chords didn't paste in but others did - same chords and formatting. Odd.