This WordPress plugin is Easy Digital Downloads add-on/extension, adds 'Website' and 'Extra note(s)' custom fields to the checkout screen.
(1) Adds 'Website' and 'Extra note(s)' custom fields at checkout.
(2) Shows the 'Website' field on the "view order details" screen.
(3) Adds a new {website} and {extra_note} email tag to show the 'Website' and 'Extra note' in either the standard purchase receipt or admin notificatios.