Sub Menu adds as Main menu, even in WordPress SubMenu

I have 7 Menu items, they look and are placed where I would like them to be.

Under menu item #5, I would like a sub menu item.

When I add it in word press, it is listed as 1 of 1, and has item 5 as a parent.

However, it displays as item number 5, and pushes the remaining items behind it. It also keeps the menu words on the screen when scrolling.

How do I add this item as a sub menu?

If it matters, all I would like it to do is point to roughly the mid-area of the page that is menu item #5.

Is there a feature or item I am missing?

Searching for sub menus gets me to mega menu and a list, none of which seems to be helpful for me.