Dave,
I find I can enter a song into Biab pretty fast now. There are pf, ctrl alt and chord shortcut keys to assist me faster as well. I am usually correcting an imported midi file anyway, so I simply start from scratch with my own edits.
You can drag chords and sections in Biab and it will copy and paste them automagically when doing so. That also is a time saver.
I would suggest to anyone working with Biab to learn the "hot" key commands and chord entry shortcuts. Once you have those down, entering a song is quick and painless.
One last tidbit - When importing a midi file via Biab, you can pre-set the key signature and number of bars you want Biab to use during the deciphering of the midi file. As with anything, it takes a little practice, trial and error and elbow grease to "get there," but well worth it once the learning curve is found

Trax