public void MarkSingleNotificationAsRead()
        {
            // Sign into Mars Portal
            SignIn.OpenForm();

            //Fill in credentials
            SignIn.FillCredentials(7);

            NotificationPage.ClickNotifications();
            NotificationPage.SeeAllNotifications();

            //Select a single notification
            NotificationPage.SelectServiceRequest();

            NotificationPage.MarkSelection();

            //Assertion
            NotificationPage.MarkAsReadAssertion();
        }