I used the instructions at https://docs.generatepress.com/article/building-simple-mega-menu/ to create a mega menu with several parent and child menus, and numerous grandchild items.
I then used David’s CSS to hide the child menu titles / headers as in:
https://generatepress.com/forums/topic/gp-mega-menu-hide-column-headers/
But problem!
In the mobile off canvas menu, the child item headers still show up, even when I comment out the conditional CSS restriction that keeps David’s CSS from operating on mobiles, i.e. /* @media (min-width: 769px) { */
Solution? Another menu for mobile use only? Any easy way of copying the existing (large) primary menu without using a plugin?