You will just add the line under [Launcher] if there is nothing there, just type in in or copy/paste As for the .ini line, you will find it under [Archive] in the Fallout4.ini Should look like this when your done sResourceDataDirsFinal=STRINGS\, TEXTURES\, MUSIC\, SOUND\, INTERFACE\, MESHES\, PROGRAMS\, MATERIALS\, LODSETTINGS\, VIS\, MISC\, SCRIPTS\, SHADERSFX\