You can add a view cart button to every page of your online store to make your customers aware of how many items they currently have in their shopping cart.
To add a View Cart button:
1. From the left side of the Editor, click the plus sign to open
Add.
2. From Add, click Online Store.
3. From Online Store, click View Cart.
4. From Link to Cart, click the drop-down menu and select the
page of your site that your shopping cart appears in.
5. Click OK.
The View Cart button appears on your site.