Creating a multicolumn menu using MegaMenu

MegaMenu is a horizontal navigation menu that displays menu options in the grid layout and each MenuItem and Submenu should be defined inside a <p:column> element.

Generally, in e-commerce applications, there might be many subcategories in each category. In such scenarios, we can use MegaMenu to display all submenus at once, instead of letting the user navigate through multiple levels of tiered menus.