Finally, let's try a few multiple item filters to create a menu in our store.

Save your changes.

Reload your storefront. It should appear something like this...

Clicking MUGS will result in a display of mugs from all stores.

Clicking Pull-Over Hoodies will result in a display of hoodies from all stores:

Clicking Newest Designs will result in a display of
the 15 newest designs between the 3 stores, displayed on white t-shirts.