In your Steam / Steamapps / common / Skyrim folder, look for the SkyrimEditor.ini Under [General] add: bAllowMultipleMasterLoads=1 Under [Archive] make sure SResourceArchiveList2= looks like this: SResourceArchiveList2=Skyrim - Shaders.bsa, Update.bsa, Dragonborn.bsa if you have all three dlc it should look like this: SResourceArchiveList2=Skyrim - Shaders.bsa, Update.bsa, Dawnguard.bsa, Hearthfires.bsa, Dragonborn.bsa