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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.
In this lesson we cover several extra options provided by the included "Extras" module with display suite. We will show how turning on the Contextual Links extra makes it easier to edit a layout when viewing an entity that is using it. We also look at the Page Title extra that allows you to hide/show the title for a particular layout. Finally we discuss a very powerful feature that allows you to have an option of an end user to select between different view modes.