Paquetes de productos

It would be really helpful in Product Bundles to be able to add an item that *reduces* the price of the overall bundle by being able to add it with a negative price number. So the standard bundle is say $10.00 and if you swap out item A for item B instead, then it goes down to $9.50. We sometimes have options in the bundles that are not the one we want to feature, but not really fair to charge the full bundle price either, so this ability to reduce the price if selected would be really helpful. Currently this does work in the total price, but it shows up as $0.00 when the item is displayed on the page. We’d like the negative amount to show.