The PR55D-4H can mirror the content (to another display) into its display port out coming from its display port in. This creates a daisy chain like structure allowing for monitors to be set up as Video Wall mode.
The Pixel Shifting feature can be activated in order to reduce the potential risk of image sticking when static content is displayed over long periods of time. The feature periodically shifts the image on the display, without causing any interference of the visual experience.