I'm trying to set up a product so that the child product changes based on the quantity purchased.
For instance, someone buys 1 or 2 widgets, they get a basic widget tote. If they buy 3-5, they get a good widget tote. 6+ gets an engraved leather widget tote.
If this is too much, is there a way to require that the child product can't be added until at least 3 parent products have been added?