How do we decide which items appears on the main screen of the POS? A mean I know how to put them under the POS categories, but the ones that appears right away you open the POS, how do you do it?. For example, most of the products have a bar code, so the user will prefer to scan them rather than use the touchscreen. But some products don't have barcodes (such as in house made sandwiches), so is better that this product appear in the touchscreen for fast pickup instead of the products with bar code