title: Is there anyway to add another levels of menus with Active Admin?
body: <p>I'm using Active Admin and trying add another levels at drop down menu. In documentation I see that I can put one level using this code:</p>
  
  <pre><code>  ActiveAdmin.register Post do
      menu :parent =&gt; "Blog"
    end
  </code></pre>
  
  <p>Thanks for any help.</p>
  
  <p>Edited:</p>
  
  <p>I want something like that:</p>
  
  <pre><code>Menu 1 ^
  Menu 2 &gt; Menu A
           Menu B
  Menu 3
  </code></pre>