1. Register it in 2sxc.org installation / feature management with a short description, set it to beta by default
  2. Then get the guid (using F12) and paste here: 
  3. Create a short-id for it for the code in the ToSic.Eav.Configuration.FeatureIds
  4. Register the specs (public etc.) in ToSic.Eav.Configuration.Features.Catalog
    (in the future we'll spread this out more, but for now it's there). Make sure you correctly mark it UI / Public