title: Nested Tabs in Ckeditor Dialogbox
body: <p>Ckeditor provides the feature to have Tabs in to the dialog box created using plugin. It uses the <a href="http://docs.ckeditor.com/#!/api/CKEDITOR.dialog.definition" rel="nofollow">dialog definition</a> for creating the tabs.For Example :</p>
  
  <pre><code>CKEDITOR.dialog.add( 'testOnly', function( editor ) {
      return {
          title:          'Test Dialog',
          resizable:      CKEDITOR.DIALOG_RESIZE_BOTH,
          minWidth:       500,
          minHeight:      400,
          contents: [
              {
                  id:         'tab1',
                  label:      'First Tab',
                  title:      'First Tab Title',
                  accessKey:  'Q',
                  elements: [
                      {
                          type:           'text',
                          label:          'Test Text 1',
                          id:             'testText1',
                          'default':      'hello world!'
                      }
                  ]
              }
          ]
      };
  } );
  </code></pre>
  
  <p>This Generates the Tabs next to each other.So my question is :</p>
  
  <blockquote>
    <p><strong>How can i use this plugin to have Nested Tabs ? so that I could be
    able to have 2-3 Sub/Nested tabs under the parent one.</strong></p>
  </blockquote>