Set up One Page main menu

This tutorial describes how to set up Menu in WordPress for single page website. Main menu displayed on the top of screen may be used for navigation through Anchor Elements too. Each Anchor element has defined ID that can be used as url, for example ID overview in our example:

You can navigate to this section using anchor in url like yourwebsite.com/#overview. The same url use for custom link in your main menu if you want navigate to this section: