Upon setting cash control, the options end of the session and open a session is
                            made available or displayed. It simply denotes that upon enabling the setting, we
                            get to see a new stage and a button-open session in the stage. Upon starting the
                            new session, the session will be in progress and we can set the cash in/out the
                            window. We can also see the button-end of the session and continue selling for corresponding
                            functions. If you need to close that session, click the end of the session button
                            and you get to see the starting and closing balance of the session. Validate the
                            session via clicking the validate close and post-entry button.