title: Allow selection of multiple values for Drupal Facets (Facet API + Search API)
body: <p>I am using Facet API + Search API to develop Filtering for the data within my site. I am also using Ajax Facet Filters to process the selection as soon as it's clicked.</p>
  
  <p>It all came out great but there's one slight problem. I can only select one option per category. As soon as I select an option, all the inactive options hide and only the active (clicked one) shows.</p>
  
  <p>I want the option to select multiple option but with my settings of Facet API &amp; Search API, there seems to be no option.</p>
  
  <p>Here's the picture to explain.
  <img src="https://i.stack.imgur.com/R542l.jpg" alt="enter image description here"></p>
  
  <p>I'll be very thankful for any assistance.</p>
  
  <p>Best.</p>
  
  <ul>
  <li>picture taken from :- <a href="https://drupal.org/node/1669600#comment-6190924" rel="nofollow noreferrer" title="Drupal Community">https://drupal.org/node/1669600#comment-6190924</a></li>
  </ul>