title: Add rule to SourceCookifier plugin for notepad++
body: <p>I am trying to add a rule in SourceCookifier for CSS language.</p>
  
  <p>Currently it shows the tree list of</p>
  
  <ul>
  <li>classes</li>
  <li>Selectors</li>
  <li>Identities</li>
  </ul>
  
  <p>But I want to add my own rule, </p>
  
  <p>I will add some comments, like:</p>
  
  <pre><code>/* Start Reset */
  -- css rules here
  /* End Reset */
  
  /* Start Sidebar */
  -- css rules here
  /* End Sidebar */
  </code></pre>
  
  <p>And now I want show my own function tree called <code>section</code></p>
  
  <p>Thanks fro help</p>
  
  <p><img src="https://i.stack.imgur.com/hxfUA.png" alt="Source code"></p>