Timeline in camera view

When someone walks by my house and I get a little popup view of the camera on my Mac desktop, it does not show me what triggered it because it has no concept of a timeline... it is always "right now" and by the time the camera actually comes up, the movement that triggered it has usually ended. The person who walked by is long gone, for instance.It would be great if the camera view that popped up would have a buffer of 30 seconds or if I could scroll back in time like people can with Nest cameras, for instance.