How to attach a node reference to product line item
I sell ghost writing services, and I've created one product for each of the standardized length stories, and one product display with a pull down to select story length attribute. Prior to placing an order, the customer creates a "storyline" node. I would like to enable the customer to specify a reference to a storyline node at the time he places a story into the cart. Can't figure out how, so I'm asking for guidance. Thanks.