Method – step-by-step:
1. In the WordPress backend dashboard – Go to: → Appearance → Menus;
2. If you don’t want a page showing all the products – Remove »Shop« from Menu;
3. To add shop pages that will only show products in specific categories – At the top of your Menus window, click on »Screen Options«;
4. Add a checkmark on »Product Categories«;
Now you can simply add the »Product Categories« to your menu;
