The Privateer Theme for WordPress offers custom displays for the various page templates.
Custom displays are modular pieces of code that allow one to show different page templates ( and/or individual post and page objects ) in a manner that is different from the default.
For example, the initial custom display ( Boxlist-Postlist ) set contains various custom displays that allow one to show extra content boxes and/or lists of posts on a particular template page or post/page object.
See the below video for a much better explanation:
