You can choose between the light setting, i.e. choosing at which level of daylight the coop should open and close, time setting, i.e. setting specific times when you know your flock has returned to the coop or are ready to go out for the day. There is also a manual mode where the door opens and closes only when you press the button.
For safety and peace of mind, there is also a built-in failsafe system for opening the door completely by hand. You can find out how to do this by checking the instruction manual.
You can change which setting you’re using whenever you want, but it’s not possible to use to different settings at the same time.