I am using odoo 12 community version. I would like to know whether it is possible to print a pdf receipt after customer paid for an invoice. I saw that there is a "account.report_payment_receipt" report in the system but I don't know how I can add it to the "print" button drop down list in the "Invoicing" form. If anyone know how to add it, please kindly share it with me. Really appreciate your help.