1. Locate your CreationKit.ini file. (C:\Program Files (x86)\Steam\steamapps\common\Skyrim Special Edition) 2. Add "bAllowMultipleMasterLoads=1" (without the quotes) under the [General] section. Anywhere will work. 3. Scroll down to near the bottom and find the [Archive] section. Find the line that starts with "SResourceArchiveList2=Skyrim" and a list of .bsa files. Add the update, Dawnguard, Hearth Fires and Dragonborn bsa files to the list with commas and spaces.... SResourceArchiveList2=Skyrim - Voices_en0.bsa, Skyrim - Textures0.bsa, Skyrim - Textures1.bsa, Skyrim - Textures2.bsa, Skyrim - Textures3.bsa, Skyrim - Textures4.bsa, Skyrim - Textures5.bsa, Skyrim - Textures6.bsa, Skyrim - Textures7.bsa, Skyrim - Textures8.bsa, Skyrim - Patch.bsa, Update.bsa, DawnGuard.bsa, HearthFires.bsa, Dragonborn.bsa 4. Save file