title: Extending Unity UI components with custom Inspector
body: <p>Is it possible to extend the new unity ui components like for example the transform component? Because nothing happens when i try to extend the button, instead of the transform component </p>
  
  <pre><code>using UnityEditor;
  using UnityEngine;
  [CustomEditor(typeof(Transform))]
  public class CustomTransform : Editor
  {
      public override void OnInspectorGUI()
      {            
      }
  }
  </code></pre>