Including an additional payment method to the Welcome Letter, for the new "Flywire - International Payment method" option, would be very helpful and would make it clearer for families in which different payment options are needed. Just as the other payment methods have, an API linked to that setting within the Tuition Management settings menu could ensure that Flywire was included on the Welcome letter and/or invoices if a school had the setting turned on, or exclude it if the school did not.