[Forminator Pro] Conditional or multiple Forminator submit button(s)?

Please tell me how I can accomplish the following. I have a form with a set of radio buttons. One for Pay Online Now and one for Send Check Later. When either of these are selected and the Submit button clicked, the form data needs to be submitted. But when the Pay Online Now button is selected, and the Submit button clicked, I need the visitor to be redirected to a WooCommerce checkout page.