Where to find split submenu like demo template

I am using J1.7 & MyFolio template.

I want to open a submenu system with two colums, identical to the one shown in the MyFolio demo template menu item called 'template'

Can anybody suggest where I start to look?

oh boy - found the solution myself in the Wiki - I need more coffee
http://wiki.gavick.com/joomla-templates ... work-menu/

wiki.gavick.com should be always first place where you look for help in such base template options