Add All Products Page to Storefront Menus Globally 

Once the All Products page has been enabled in the system configuration globally or per website, you can add it to a storefront menu on the system level (globally):

  1. Navigate to System > Frontend Menus in the main menu.

  2. Click on the menu to which you will add the All Products page.

  3. Click Create Menu Item on the top right of the page.

  4. In the Title field, type in the label for the menu item.

  5. In the URI field, specify /catalog/allproducts.

  6. Complete the other fields as required.

    Adding the All Products page to storefront menus globally
  7. Click Save on the top right of the page.

The All Products page should now become available as part of the selected menu.