The Bank Register is not a transaction window
The Bank Register simply offers a streamlined method for recording sales. When you enter an Enter Sales transaction in the Bank Register, it is as if you had opened, entered and recorded the information in both the Sales window and the Receive Payments window.
The Sales 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 Sales window and enter more detailed information.
Whether you use the Bank Register or the Sales window to enter the transaction, it is the Sales and Receive Payments windows that display when you open the recorded transaction from the Bank Register, Sales Register or Find Transactions windows.