K2adir

The Growlers - Night Ride https://www.youtube.com/watch?v=ImANYYEBH-U

I want to play some songs but they are build in B standard, which sounds really bad and my RS doesnt recognize many notes when I play them. So, I was wondering if there is a way to change default tuning of a file? I got RStool kit, tried to unpack it and find it's XML file under Songs --> arr and changed "string1" 2 3 etc to 0 instead of -5. Saved it, but know my file doesnt show up in the game. If somebody can give me a detailed walkthrough that be great. thanks