Sync groups & video walls

A sync group is just a name shared by two or more screens (Screens → Group). Screens in a group compute their rotation from the server clock, so they show the same scene at the same time — and looping videos phase-lock to the same position. No extra hardware or cabling: it works over the normal 60-second heartbeat.

Expect screens to agree within a few hundred milliseconds — plenty for menu walls, lobbies, and multi-screen promos. It is not broadcast genlock: if you need frame-accurate sync for a single video spanned across panels, you need dedicated video-wall hardware. A dropped connection doesn't break sync — the schedule and clock travel with the cached release.

Each screen in a group can carry a sync offset in milliseconds. A positive offset means that screen runs that many milliseconds BEHIND the group — e.g. three wall screens at 0 / 150 / 300 ms ripple a transition across the wall instead of flipping in unison. Offsets clamp to ±30 seconds.

You can pin a release to a whole group instead of device-by-device — handy for staging a new version on the lobby wall while the counter screens follow the board's latest. Sync groups (including offsets and group pins) are a Pro feature; removing a screen from its group is always free.