Create New Menu
Step 1 – Go to Appearance → Menus
Step 2 – Click the create a new menu link to create a new menu
Step 3 – Select items from the left meta boxes and click Add to Menu
Step 4 – On the right, feel free to drag and drop menu items to organize them
By default WordPress only shows the basic menu items, but you can scroll to the top page, click on "Screen Options" and check the section menu you want to show. Such as Product Categories, Products.
Step 5 – When you are done moving menu items, check a menu location at the bottom of the page
Step 6 – Click Save Menu