Change something, for example, the name of an item (don't change any ID), and change it back to the original name, so the CK things that your esp file has changed.
The mod won't work in SSE right now, but you need to install it in the SSE folders for being able of editing it with the Creation Kit. The easiest way of doing this is using Nexus Mod Manager. Porting Skyrim mods to SSE Install the original Skyrim mod in the SSE folders I will write down here any new findings, as for the time being I've only ported some mods adding NPCs. I am assuming that you know how to make mods for Skyrim and use the Creation Kit. This mini guide will show you how to port your Skyrim mods to Skyrim Special Edition (SSE).