How do I change my 'Shopping Cart Validation' settings?

How do I change my 'Shopping Cart Validation' settings?

1) Click 'Payment' link under the 'Order & Payments' heading of the Control Panel.

2) Then, click the 'Website Settings' options.



3)
Under the 'CART ITEM VALIDATION' heading, edit your cart item validation settings.



4)
When you are finished, scroll up/down & click the 'Save' button.