This Pro tutorial provides the steps to show all the posts of a specified post type as menu items with accordion functionality for submenus.
This is especially useful for Pages and hierarchical CPTs that have parent > child posts.
While Bricks was used whilst developing the solution, this technique can be implemented in any WordPress site.
Step 1
Add the following in child theme's functions.php (w/o the opening PHP tag) or a code snippets plugin:
