After some tests, with firmware DH_NVR5XXX-4KS2_MultiLang_V4.000.0000001.3.R.20191129 , I'm not able to manage IVS parameters (under AI) for the IPC-B5442E-ZE, it does work fine with other cameras, such as 81230, 5231 and so on, but not for the AI one, the web UI says
"It has exceeded the device max analysis channel threshold!"
And it doesn't save the modifies Also tried a factory-default, no joy ... Later I'll try to downgrade the NVR's fw to 0.1 version. Funny thing, I've played a bit with PBR and PIA on my router, forcing the NVR to search updates in the US, mine doesn't show the update available to 1.5 version