Is it possible to create a product selection field that does not affect the quantity of the product? I’m making a t-shirt shop where 10% of the sales price will go the an NGO. The costumers should be able to choose between three different NGOs. I want this selection field to be placed below the size selection field, but if I create a variant it seems like there are 3 t-shirts when there is only one. Because each NGO counts for a variant. How can I do this so I can see the selection on the order confirmation, but still use the quantity count, so I won’t be able to sell a t-shirt there is sold out.