I'm trying to figure out how to make a single line text field tied to a product in my form, so that the text the user enters can be relayed to PayPal as one of the product's "options". All the other kinds of product options (drop downs, etc) are working beautifully so far. Is there a simple way to also do this with a custom text field? Does it require a custom hook/filter (and if so, how do I go about implementing one; I'm not even sure where exactly to add the code)? I'm new to this so I apologize... Thanks for any help!!