thats because those 3 are all you are supposed to touch...

config.h
config_adv,h
pins_rambo.h

everything else is either other boards or the code running the board... you dont touch that... pretty much you setting options dont change but things get added or refined just make any settings defined in your 3 main files the same in the new downloaded version it will upload ands work the same... but any added features will now be available to you