\var\BiaB_etc\bb\Data\temp.txt
yes you need the track menu for that to get Biab to make the txt also for midi data \var\BiaB_etc\bb\Data\trackdata.txt

You copy paste the chords from the log console window to Biab Ctrl+Shift+V or Edit Paste Special. It can be made to do it automatically but this gives more control.
Yes most scripts use / or \\ so they work on Mac to but didn't bother as I don't think I can edit that function on the Mac menu to give the track data ? haven't looked into it, will be easier if PG just give menu function to give these temp trackdata txt like it gives with all drum txt all realtrack txt all styles txt etc..