I created a simple one page website on Wix Harmony (not the wix classical editor, so you need to know where things are in the harmony not the classic one). I need to add a button which says Register and Pay. Once clicked, a form comes up, the person ticks 5 ticks for consents, fill simple contact details, and pay. The person then receives a registration number and I receive the contact form with their registration number and the payment. I think there is a wix form that does all of this. So I need you to show me how to do it, not you doing it