Adding custom field to PayPal Checkout (payments) page
tl:dr: Want to allow donors to be able to specify who their donation in honor/memory of when they donate on the payment page.
Currently when users click the donate button from my site they are directed to the PayPal page where they can specify the amount and if they want the donation to recure monthly. We want to be able to give the opportunity to also specify who their donation is in honor of, if possible. Can that custom field be added?