I have tested "Biab-track-injector-GUI-1003" according to summary video of Biab Track Injector and I have noticed following issues:
1) "Import All Selected Tracks" sometimes jam up the process. If "H" is killed the process continues and result is evidently correct. Very harmful is that Biab dialog has disappeared after process is finalished. I don't know how to refress the dialog to see it again. Also If many styles and utility tracks have been used in Biab the final result is unsure.
2) "Generate Current Track Section Custom": If first generate tracks by "Import All Selected Tracks" and after this try to "Generate Current Track Section Custom" the result is whery unstabile or process will jam up depending what have been done before. Sorry but I can't explain more clear way what can happen.
3) "Generate Current Track Section" will behaviour wrong way if many different styles have been used on Biab (which is more than normal in my case). Wrong instrument will be selected to section which have been selected to be modified.
4) What might commands ”Set BB to Blank Style”, BB - , BBmix - ,BBmix, to do? Only first one select style "BLANK.STY "
5) When I press Random Tab of different instruments and many styles are used in Biab the result is unsure? I am not sure if I use this part of program right way.

I hope that you can utilize this test info to develope the program further.