Enter your PIN. This device stays signed in for a year.
Pick the demo scene from the room menu, or add a room and send the Omen a video of it.
Pick the room, then the video. It uploads in pieces and picks up where it left off, so a dropped connection costs nothing. Keep Walkabout open until it finishes. More than one video of a room is fine: the Omen builds the room from all of them together.