Hi Jerry,
I’m not sure I fully understand your question, if you want navigation like this:
- Parent menu item
- child menu item 1
- child menu item 2
- child menu item 3
It’s better to use the custom links
for the parent menu item and use #
as its link.
So even when you click on the parent menu item, it will only open the submenu, and won’t direct you to other pages.
For the child menu item, they can be anything you want, pages/posts/custom links/categories/tags…