title: Layout in Hot Towel SPA with top and navigation sidebars
body: <p>I want to start a new SPA application, and I found Hot Towel template very interesting</p>
  
  <p>I need to have two navigation areas - left panel and top panel.</p>
  
  <p>But Hot towel's default shell contains only three areas - header, footer and content  </p>
  
  <pre><code>&lt;div&gt;
    &lt;header&gt;
      &lt;!--ko compose: {view: 'nav'} --&gt;&lt;!--/ko--&gt;
    &lt;/header&gt;
    &lt;section id="content" class="main container-fluid"&gt;
      &lt;!--ko compose: {model: router.activeItem, 
          afterCompose: router.afterCompose, 
          transition: 'entrance'} --&gt;
      &lt;!--/ko--&gt;
    &lt;/section&gt;
    &lt;footer&gt;
      &lt;!--ko compose: {view: 'footer'} --&gt;&lt;!--/ko--&gt;
    &lt;/footer&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>How can I add a new area, leftnav?</p>
  
  <p>Thanks</p>