title: Multi-step form (or multiple "pages") in one route using Ember.js
body: <p>I would like to devote a single route of my EmberJS app to being a multi-step form. This is the <strong>only</strong> time I want my URL to remain unchanged, so <code>location: 'none'</code> is not an option (as far as I can tell). I have controllers at other routes that are tightly integrated with the URL as they should be.</p>
  
  <p>But at this single, unchanging URL I would like to accomplish the following:</p>
  
  <ol>
  <li>User answers some questions. </li>
  <li>User clicks a button and old questions are replaced with new questions.</li>
  <li>Rinse and repeat until the last "page" where all the data is finally <code>.save()</code>-ed on submit.</li>
  </ol>
  
  <p>The way handlebars works is really throwing me for a loop on this.</p>
  
  <p>I have been pouring over the documentation, but can't really find an example. I have a feeling that it is a case where I just don't know what I don't know yet. So if someone could point me in the right direction, hopefully that's all I'd need.</p>