I need code modifications made to a Cubecart 4 ecommerce website to allow quantity discounts to be set by category. For example If customer buys 10 or more t-shirts in the same category the price is reduced by $2 per shirt. The option for minimum quantity and discount amount should be available on the edit category page for each category. When the conditions are met, the discounted price should show up in the right hand shopping cart box and also on the checkout page. A test server with Cubecart 4 will be ready to use for this project.