Video In State
The Video In state allows for live-video playback from another source via the HDMI® Input port on the XT1144, XT1143, and 4K1142 models.
Volume can only be changed using the Set Volume command when the presentation is interactive. Video states in a non-interactive state still utilize the Set Volume option in State Properties.
Overscan enabled: Check this box to display the video input beyond the edges of the zone. Use this option if the source video signal is using an overscan setting.
This section has an accompanying tutorial video: