I have a detection zone that reaches the pavement, with tracking enabled, the camera tracks each person that walks past, following them.. this includes a neighbour walking into their home, even though I have this area set with a privacy screen, but because a person triggers the tracking outside the screen, it follows them to their house and makes the privacy screen obsolete. I want to keep this detection zone due to monitoring parked car on the road, but I would only like to trigger tacking once a person has been detected on my drive. This would require a secondary zone specifically for enabling tracking. First detection zone would trigger an alert but with tracking disabled, second zone, withing the detection zone would trigger tracking once enabled.