title: Is it possible to make a custom sorting (not ascending or descending) with help of engine?
body: <p>I have a data to be sorted, but it should be a custom sorting defined by mine rules.</p>
  
  <p>For example I need to print values in this order: </p>
  
  <pre><code>B 
  C
  A
  D
  </code></pre>
  
  <p>It is not an ascending or descending sorting.</p>
  
  <p>Is it possible to do this?</p>