I only ran 2 ethernet cables to the garage when the trench was open (one for backup). So if a home run to the NVR is needed from each camera, then I would need a separate NVR for the garage. Perhaps my terminology is wrong. I probably should have said "human" detection and not "motion". I was looking at various PTZ's on youtube that showed human detection while in cruise mode. I got the itch for this as the neighbor behind my new garage had a break-in to his work truck two nights ago and about $4,000 in hand tool was stolen. Previously, I was contemplating PTZ's on the outside of the garage but was worried they would think I was spying on them. The cops came to my house yesterday to review the recordings on my DVR but non of my cameras were pointed towards his property. Now, I don't think he would mind.