Navigation hover extended display of navigation

In your demo theme http://kriesi.at/themedemo/?theme=enfold-overview when you put your mouse over the navigation bar at the top on top of the word Pages, a sub menu appears that is large and has options for the user to see that are in that submenu.
How do we turn this on and control this option?

It has a column of information with links within each column.
how do we make a sub menu that appears like your example?

Example Pages Slider Blank Pages Special pages
link link link link
link link link link
link link link link

How do we turn this on for some pages and control what appears and how do we turn it off on others?