Okugi replied
Thank you for your quick reply. I previously experimented with this as it seemed like the natural solution...nesting the menu items. I could not get it to work for this menu. It seemed like the Mega Menu Penci Block, "Advanced List 5 Columns" required you to add the menu items on the element itself (image C) and not in the Menu area of the WP admin.
I will try again to create the Penci block and link it to a top-level menu item again. Perhaps I just missed something.
Thank you
