Automatic floodlight cam siren if person detected

How can I set the floodlight cam siren to trigger if a person is detected? My property has a front and rear garden in which there should be no person over night. I can’t seem to find a way to do this. Ie person enters front garden, AI detection system registered it as a person (as opposed to e.g. animal) and this causes the siren to trigger. Without this feature the best the camera can do is record a criminal doing whatever they want whilst the property owner is asleep or out relying on them to see a phone notification and to manually trigger an alarm.This has not been thought through properly - please could this setting be added! (The AI person detection should stop false alarms)