questions about cfg files

[orengreen]

Hello maties!
I'm using GWX (the new version) and I want to edit the cfg files to bring back the following :
Map updates: original red/blue/green contacts for ships and airplanes
Sonar/radar: direction lines for contacts visible
U-mark: the orange spot on the water while sub is underwater
Water: color is blue instead of black and more transparent

Lastly, is there some website/location that has a detailed explanation about the various cfg files of the game, what entries they contain, and how to modify them?

Thanks!
Oren