Ability to add a convenience fee or other charge at checkout to an experience/event purchase fee/charge

Similar to how most ticketing platforms charge convenience fees/charges, create a setting that allows store owners to set a fee, on a per experience basis, that is charged in the Shopify checkout. Note: Making a /cart /checkout charge non-optional can be tricky because Shopify is designed to let customers edit the cart line items. If Experiences was to do this in a way that creates a non-optional charge to make the customer to pay for the main experience/event + the convenience charge, the app may need to create a new experience + charge custom SKU/product that could result in many new, temporary, Shopify products.