Update
Set New Session to Key (sets first chord of new session to actual key)

For Later version of BB
Exe, script and bb.jpg
https://www.dropbox.com/s/fyo1fezr1t84uvp/Biab%20Chord%20Picker%20beta%202.1.zip?dl=1

Script and bb.jpg only
https://www.dropbox.com/s/mij7lu3u68rqm7i/Biab%20Chord%20Picker%20beta%202.1.ahk.zip?dl=1

For Earlier Biab versions ONLY (if when you right click a chord > Edit, and it's already highlighted then use this version)
Exe, script and bb.jpg
https://www.dropbox.com/s/sxdo95ug5b6bjwm/Biab%20Chord%20Picker%20beta%202.1%20BB2011.zip?dl=1

Script and bb.jpg only
https://www.dropbox.com/s/zza71kks144ly0c/Biab%20Chord%20Picker%20beta%202.1%20BB2011.ahk.zip?dl=1
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ReaTrak Biab & Plugin in Reaper
Free Biab Chord Picker Tool