title: SimpleCart additional information with custom columns
body: <p>I am using the <a href="http://simplecartjs.org/">SimpleCart Javascript Library</a>.</p>
  
  <p>I want to add an <code>id</code> to each product and when the user proceeds to checkout,
  these <code>id</code>'s would be sent as well.</p>
  
  <p>Instead of these columns, for example:</p>
  
  <pre><code>Name   Price
  book   5$
  </code></pre>
  
  <p>I want to have a <code>Product Id</code> column include as well:</p>
  
  <pre><code>Id   Name   Price
  3    book   5$
  </code></pre>
  
  <p>I've tried inserting the <code>id</code> into the options, but I had no luck doing so.</p>
  
  <p>Can someone show me a detailed example doing so?</p>