Not as far as I'm aware (I haven't tried all copy and paste possibilities though so I could be wrong).
If you want to copy the chords, the way to do it is...
1. In the BIAB that you want to copy from... select "File | Save Special | Midi file" and then choose the "Clipboard" option as the file's destination.
2. In the BIAB that you want to copy to.... select "File | Import | Import Chords from PG Music Midi File on Clipboard".
Regards,
Noel