I think there’s a bit of confusion with on the behavior with orders and Terminal API. The newsletter says that you can integrate Orders API with Terminal API and display itemized line items on the Square Terminal device.
What that means is that your application can create an itemized order with our API and when the customer is ready to pay for the order it will push to a Terminal device to be paid for. When it dose push to the device it will show the itemized order. Terminal APIs UI is very different from the Square app that’s on the Terminal and does not have the same functionality.
Orders created by the API at this time won’t push to the orders section of the Square app till they are paid for. 