For the time being then, is it possible to use the Scheduled Player setup to create a video wall, that can display unique content on a number of screens, and then play a wide video file, that has been sliced into multiple parts, and play that as though it were a single video file spanning across all of the devices/displays and play it in sync?
Obviously that means adding the separate parts of a sliced video file into multiple playlists, setting equal durations and ensuring that the devices/screens were correctly positioned.
From what you said previously, as long as the devices time settings were identical, they were all on the same network and the playlists were set to matching durations, then I think you’re saying yes, this will work?
Then having the ability to switch the devices to a different setup/s ( discussed here: Setup Switcher Addon ) at a preset date/time is something that might be added in the future, even if that relied on ‘forcefully’ switching the devices to play another setup, and even if the playlist was halfway through playing a video file.