The Bank Register is not a transaction window
The Bank Register simply offers a streamlined method for recording customer payments. When you enter a Receive Payment transaction in the Bank Register, it is as if you had opened, entered and recorded the information in the Receive Payments window.
The Receive Payments window has fields for more information than does the Bank Register. You can click the Split button in the Bank Register window to open the Receive Payments window and enter more detailed information.
Whether you use the Bank Register or the Receive Payments window to enter the transaction, it is the Receive Payments window that displays when you open the recorded transaction from the Bank Register, Sales Register or Find Transactions windows.