Board Thread:Support Requests - Getting Technical/@comment-5068292-20150119063331

Hi, I've been editing MediaWiki:Sidebar in an attempt to format the navigation box in monobook, now I'd like to know if adding pop-up menus displaying level 3 & 4 headings that come up after moving my mouse over their corresponding level 2 headings are possible. Sort of the Sidebar equivalent to http://dev.wikia.com/wiki/ExtendedNavigation for NavBar. 