Hi, I'm building a gift card system for a restaurant. It's pretty simple. Contact info for recipient and receiver, payment (paypal or stripe) and a searchable list of existing gift cards on the front end. I've got all of this working so far. I'd like to add 2 features. A button in the list or on the details page to resend the gift card to the receiver in case they delete or can't find the email. I'd also like to add an ability to subtract a value (redeemed amount) from the original total of the gift card and keep a running tally of that until it hits 0. Any ideas? Thanks,   Kevin