You can use the Walker
class to customize your menus however you like.
A simple example of using Walker
to create a custom menu can be found on the official WordPress Codex, here:
http://codex.wordpress.org/Class_Reference/Walker#General_Menu_Example
To do what you want using Walker
, you would probably want to ensure that your menu has X
parent items (where X
is the number of columns you want), and each of your menu items is organized under one of those.
You would then use the Walker::start_lvl()
and Walker::end_lvl()
to output the container HTML for each of your columns, and Walker::start_el()
to output each individual item.