Creating a New Ticket Order screen

Ok, I am totally IT illiterate so need remedial instruction. This for a v4 .Trying to creat rules to run The program. How do I create a rule to display the Payment Screen. I only want this for a very small coffee shop. I don’t want to connect EFPS or the till or do any reports. Just want a Note Button, Cancel Item button and. pay button on the Order Ticket. I will get to the Payment Screen when I can see it

Are saying a button to get to the settlement screen? If so this is be set default.