title: Display custom data on Woocommerce admin order preview
body: <p>I would like to add some custom data to the end of the preview order in Woocommerce order listing page.</p>
  
  <p>For that I have tried the hook 'woocommerce_admin_order_preview_end'. But no way to pass any arguments to that action.</p>
  
  <pre><code>add_action( 'woocommerce_admin_order_preview_end', 'custom_display_order_data_in_admin' );
  function custom_display_order_data_in_admin( $order ){
      //$order is empty here
  }
  </code></pre>
  
  <p>Does anybody have an idea on this? I'm stuck on this.</p>