This past week, an integrator posed this scenario to me:
Their customer (a school campus with 'hundreds' of cameras) wanted to know if there was some way for their VMS to display only cameras with motion if they press a button during a Code Red lockdown.
Their theory being, while students and staff are 'locked down' during the emergency situation, they want to be able to automatically locate the active shooter via motion on their cameras.
This reminded me of that old Star Trek episode where someone was loose on the Enterprise and the ships computer isolated all the heartbeats to eliminate the crew and show there was one heartbeat unaccounted for - someone else was on board on a lower deck... :)
My initial response was that I am not aware of any VMS that can do this (all by itself anyway). But after thinking about how the customers proposed solution could be accomplished, I think I've got at least something that could work.
However, I'm interested in hearing how other IPVM members (who have to devise one-off solutions all the time) might propose to do what this customer wants.