Create an Editor Window like Mecanim

I am pretty good with extending the editor with inspector gui, scene gui, but I have been looking for a way to move into a full “Window” based editor like Mecanims grid.

I am not exactly sure how I would complete this and I have been looking for examples.

I was wondering if any of you out in the Unity world has seen one or found any GITs.


Found a good example to start with…