To change the duty status of the driver, tap the Duty Status button > select the appropriate driver duty status from the drop-down list.
Available Duty Status Options
Selecting a status from the drop-down list will show the Create Event dialog. To adjust the duration of the duty status event, tap the Previous 15 minutes Time Interval button to increase the time duration or the Next 15 minutes Time Interval button to decrease the time duration. These buttons are disabled to prevent time from being logged before or after the current day (e.g. 12:00AM –11:59PM).
For more information, watch "How to Switch Driving Status in the HOS App"