Is there any way to force the discount box to be present on checkout page. We have a third party app controlling the cart page, and this app shows their own discount box, which is ok to a point. However depending on the cart, the discount box isn't always available on the checkout page. I understand the reasons why not, I have read in numerous other post that this is how Shopify is supposed to be, but I'd like to force the box to show. If the box is there, then we can give additional info via the "languages" section, and explain what codes are, or are not, in use. We get customers being confused, depending on what they buy, one day the discount option is shown in the cart, another day at the checkout - please can you help with making it permanently visible at checkout.