Can we not create custom video clips from our Google video doorbell? I see the only option is to select an event from the home app and save it. But why can we not save custom clips like in the Nest app?
No, I'm afraid. For cameras setup in the Google Home app, you can only download video clips from detected events in the video history. You can't download video clips from footage with no activity. The maximum clip length setting for your camera or doorbell will affect how long video clips can be.
