Has anyone figure how to create a functional mega menu

Design help General
1

I am trying to create a menu like the one below.

Please assist.

Thanks
Alex

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

2

There’s no link, can you please share it again?

3

Hi sorry about that. Please see below.

4

This is a small version on a site I’m working on, but you can make it as big as you like. The only limit you may encounter is the 20 collections per page, but a business plan lets you have 40.

CloudApp

https://www.moddisplays.com is Webflow site, their menu is a bigger still.