title: How can i persist view content when state change?
body: <p>Is there any way to persist content from named ui-view when i change the state ? I really need it to do a multiple window behaviour.</p>
  
  <p>Here is the plunker, when clicking main 3 or main 4 i want to persist the content.</p>
  
  <pre><code>&lt;div&gt;
  &lt;div id="mainNav" ui-view="mainNav"&gt;&lt;/div&gt;
  &lt;div id="subNav" ui-view="subNav"&gt;&lt;/div&gt;
  &lt;div id="content" ui-view="content"&gt;&lt;/div&gt;
  </code></pre>
  
  <p></p>
  
  <p><a href="http://plnkr.co/edit/t5k8AdVojM8PvwPBES27?p=preview" rel="nofollow noreferrer">here is the plunker</a></p>
  
  <p>Thank you so much !!</p>