Independent motion zone control should allow one zone to create alerts, activate lights, honor time schedules etc. BUT THEN A SEPARATELY DEFINED ZONE ON THE SAME CAMERA would allow a DIFFERENT set of alerts, light control etc.
The primary use case - and I have seen several variations on the feature boards:
Camera on front of house:
- want one zone to cover street and want video of street activity - BUT NOT MOTION ALERTS
- and then a separate zone of my front yard/driveway WHERE I DO WANT MOTION ALERTS
Summary: independent control of each defined motion zone