Modify the costumer facing display
Is there a way to use the API (or lightspeed retail vanilla) to edit what goes on the costumer facing display (CFD)? I'd like to add some buttons to it where the customer can send the receipt by email (and fill out email if needed). I've also been thinking about having the customer input their phone number to attach them to a sale so we wouldn't have to search them manually.
I can't find any information on the CFD in the API or retail documentation.