Each table = two short rows facing each other. The ■ stays row doesn’t move; the ▸ slides row shifts one chair right each round. Edit a name, ⇆ moves someone to the other row, × removes, + add adds. Saves automatically.
Each column is one pair at the start — the Tech person sits across from the Commercial person below them. Edit any name and you can see who’s paired. Tech (■) stays put; Commercial (▸) slides one chair right each round. Scroll sideways to see all pairs.
Keep this on the room screen. Names & timings save on this device; the screen stays awake while the timer runs.