Menus are controlled via:

=> Appearance

=> Menus

With a site with many pages or posts using the “search” tab to locate the link target can be very helpful!

Once an item is inserted the label can be changed, a class can be assigned to the item and you can force the opening of a new tab (PDFs and off site links)

Menus are often inserted into the site via the “widget” interface:

=>Appearance

=>Widgets