What is BBL?

[joecar]

...
I don't understand the Ver8 F4 Tune Settings tab. This is the tune file I wish to save on the PC? Or, a tune I wish to move to the V2? Or, a tune I wish to write to PCM? Or, one that I will PC edit later?
Thanks

V2 has the ability to read/write a tune file from/to the PCM... i.e. BBR/BBW...

i.e. you can read the tune from the PCM (BBR) and save to file, edit it (using V7), and write it back to PCM using V2 (BBW)...

The S&T F4 Tune Settings tab is for configuring which PCMs/ECMs/TCMs you want to to do BBR/BBW on.