Bundle items in different sizes and colours

Customers can now split the items in a bundle across sizes, colours and models. If a bundle holds a product set to «Any variant» with a quantity of 2 or more, say «T-shirt × 5», the customer picks 2 × S, 2 × M and 1 × L, in one colour or several. The same goes for a product from an option catalogue: five cases can be for two different phone models. It happens automatically, with no setting. The bundle price stays the same. The cart and the checkout show the split under the product, and in the order each combination is its own line.