Enable mods

You will need to add the following to Fallout4Prefs.ini at the bottom of the file

[Launcher]
bEnableFileSelection=1
uLastAspectRatio=1

You will need to change the following line in Fallout4.ini
sResourceDataDirsFinal=STRINGS\
to read
sResourceDataDirsFinal=STRINGS\, TEXTURES\, MESHES\