title: How can I get multiEditor rather than IEditor?
body: <p>Is there a way to get multiEditor rather than just getting IEditor?</p>
  
  <pre><code>IEditorPart editor= getSite().getPage().getActiveEditor()
  </code></pre>
  
  <p>to</p>
  
  <pre><code>MultiPageEditorPart editor=??
  </code></pre>