The most versatile and powerful Drum MIDI editor is the one in Cubase and I use Cubase 5 for Drum MIDI editing for my BB !
Here is i clip showing the Drum Editor in Cubase 6.5 which is pretty much the same as the one in Cubase 5
My DAW is Studio One 3 but the Drum MIDI editor is a joke ( and so is the rest of them on the market today IMHO ) in comparison to Cubase since all you have is the piano roll so you have to move around notes only using the mouse instead of keyboard which is a very tedious experience.
Since the BB can be used as a sound module it can be played directly from a DAW.
Just connect MIDI out from your DAW and to MIDI in on your BB and you’re good to go.