First, log in to Administration panel (Dashboard) and navigate to Appearance > Customize Live Customizer will open in your browser window.
Now proceed to Menustab and click on Add a Menu
Enter your new menu’s name and click on a Create Menu A form will open allowing you to add menu items and define menu location.
Click on Add Itemsbutton to open the form with the items, available for adding.
Expand the Custom Linksoption to open the form where you can add a custom link that will lead outside from your website. Here you can fill in the link you want to use and the text that will define the link in a menu. Then click on Add to Menu
You can also choose a link leading to one of your website’s pages. To add a new page enter its name to the respective field and click on Add
When you’ve added all the items you wanted to be shown in a custom menu, choose the location where you want a menu to be displayed.