title: Unity3d Open editor window at the cursor position
body: <p>I've got a simple question. I would like to open an editor window in unity and have it's top left corner be at the cursor's position. I have tried setting <code>EditorWindow.position</code> to <code>Event.current.mousePosition</code> but this has yielded no results.</p>
  
  <p>It seems that <code>Event.current.mousePosition</code> has it's origin at the top left of whatever window it was last in (inspector, etc.).</p>
  
  <p>Any help?</p>