So often when I make a cdlc there are no bass tabs available, but for *most* songs the bass tab looks alot like the rythm guitar tab, so what I do is select all, copy and paste in bass. Then select all, deselect single notes, clear orange, deselect single notes, clear blue, deselect single notes, clear yellow. now all the chords are reduced to their bass note.  Also PM are almost not used in bass, in some guitar genres alot (the ones I'm making anyway) So now I still have to delete (make normal