I was able to do all of these zoom until the NVR upgrade. Now unable to do partial zooms using IE Web GUI, all other methods I can still use partial zooms.Ni idea what you're saying b ut I guarantee there are 3 ways to zoom the camera (optical not digital zoom)
Using SmartPSS
Using the camera Web GUI,
And using the NVR web GUI I show above.
4 ways if you want to count using the DMSS app
All of which I just did