This theme comes with three menu locations.Top header menu(only for header layout 1),  main menu( both header layout 1 and 2) and Bottom Footer Menu( both header layout 1 and 2) 

You can create menus in two ways.

• Appearance=>Customize=>Menus=>Create New Menu
• Appearance => Menus(We RECOMMENDED this Option for creating menus.)

• Create New Menu [You need to create only one menu]
• Give name of the menu[For eg. Primary Menu] > Create Menu