How to make specific EditorWindow show in every pjt I create?

Questions & Answers
1

I made a useful EditorWindow that I believe should be built-in to Unity but isn’t. So does anyone know of a way I can make it automatically show up in every pjt I create, without having the script in my assets folder? I would guess I could drop the script somewhere in the Unity.app package contents but I couldn’t find the location.

2
  1. Create a package with your scripts. (Assets->Export Package)
  2. Save it somewhere.
  3. In every new project, import it. (Assets->Import Package)