Does anyone know if there is a way to create an advanced dropdown menu, similar to this photo? (versus the standard single column menu?)
You can design your own custom menus by expanding and collapsing the elements you place under your menu items and creating a click event for them or even use lightboxes which triggered by your menu items… Your possibilities are infinite actually 
Here you can find a 
tutorial on youtube 
Good Luck
I click on the tutorial YouTube link and it’s set to private, so can’t see it.