To enable available links, go to Tools->Edit Quick POS. A total of 30 options are available. It is recommended that you enable as many that are needed for the most popular items sold.
To Map a Catalog Item to a POS Quick Link, navigate to the Product List section of the system (Functions->Point of Sale->Product List). Locate the desired item in the list, and click the Edit link in the Actions column. When viewing the details of the selected item, set the POS Quick Link Mapping drop down to the desired button, and click the Save button.
To see the results, navigate to the top right of your Shape screen and choose QUICK POS. Selecting an item here will add it to the cart for checkout.