You will have to use motion sensors at the entrances of the garage one at the walk in doors and at the drive in doors. You will have to set them to stay on for a certain period of time. They will come on and stay on for that time unless they sense more motion. You can also get them so that they sense movement and come on but you can then turn them to on so if you are under a car working or inside the car the lights won't go out due to not sensing your movement.