Your first interaction with the Job view will often be to clock into your appointment. After tapping on an appointment from the list, techs will notice an "On Site" clock event available to them along the bottom of the screen.
There are three separate clock event types available to technicians. To select the type of Clock In, simply swipe left/right with your finger along the bar at the bottom of the Job view screen. To view a summary of all current clock events on the Job, tap on the clock event bar and a list will be shown. You can also select the different clock events from this screen as well.