title: is there a way to specify the controller for {{render}}?
body: <p>The reason I want to do this is that I have a list of objects that should be displayed twice, once in expanded form and once in compact form. So I would like to do this:</p>
  
  <pre><code>{{render 'widgets' store.widgets}}
  ...
  
  {{render 'widgets-compact' store.widgets}}
  </code></pre>
  
  <p>and in both cases use the WidgetsController.</p>