BIAB2017

Goodmorning everyone! This is my first post.
I have open midi file in RB.
The midi file(type 0) was opened in RB by separating the piano track (chn 1) the drum tax (chn 10) and the bass track (chn 11)
in RB I see chords and notations of each track.
This operation I could not do in BIAB then I used RB.
Now my wish is to save the file from RB in BIAB format and see in BIAB, as here, the three separate tracks with their notation, chords, ecc.
I tried to look at the manual but I did not find a solution to this problem.