With Groovy menu you can add any content to the menu dropdowns (including mega menu), using most of popular page builders as Elementor, WPBakery and others. The full list of supported Page Builders can be found here.
Note. How to enable WPBakery mega menu
Note. How to enable Elementor mega menu
How to add Mega Menu Blocks
To create a mega menu blocks please go to
Groovy menu > Menu Blocks and click on
Add New Menu block button
Note: In most cases that to show the page builder interface in the Menu Blocks section, you need to enable show the builder in the custom post types
"gm_menu_block"somewhere in the your page builder settings.
How to add Menu Blocks to the site menu
To add a menu block to the site menu go to Appearance > Menus and select menu block in the sidebar.
Note. If you don't see Menu blocks tab please check if the appropriate checkbox is checked in Screen Options