There's a bug with the installer, it adds "/Fallout 4" to the install location. So when it needs me to point to the Fallout 4 main directory I end up with "steamapps/common/Fallout 4/Fallout 4". I need to point it to Steam's "common" folder to get "steamapps/common/Fallout 4/" and continue with the installation. Edit: Just wanted to add, as someone who's been messing with the INIs since New Vegas, I've always wanted a tool like this! Thanks, endorsed!