I'm trying to build a hierarchical directory using custom post types and custom taxonomies as I've described in another question.
My problem is that I cannot figure out how to make those posts accessible from only a single menu item of my current primary navigation menu as Mega Menu to be popped up when I hover over that menu item. I don't prefer to use any Mega Menu Plugin to accomplish this task as my site's performance is much slowing down by using already too many plugins.
Instead, I prefer to use my custom mega drop down menu which will be built with CSS and jQuery or may be with Ajax as well.
The Sequence should be like,
[Single Menu Item] >> [Mega Drop Down Menu]
Mega menu should contain both hierarchical and non-hierarchical taxonomies in several steps until I reach to my destination which is a single post that belongs to a specific custom post type.
But the most important fact is that before I reach to that post the way should be in multiple steps within that mega menu.