Check your version
This tutorial covers a topic in Drupal 7 which may or may not be the version you're using. We're keeping this tutorial online as a courtesy to users of Drupal 7, but we consider it archived.
Sprout Video
In this lesson we cover adding different type of custom fields to your layout using Display Suite. From adding a custom code field, blocks, to dynamic fields, each of these can be moved around your layout and replicated/modified across different display modes.