Click Channels ▾ top-left → panel opens. Toggle any channel on or off. Use search to find quickly.

Choose how many screens: 1, 2, 4, 6, 9, 12, 16 or 20. All cells keep exact 16:9 ratio.

Hover any screen → click ⤢ to open it full screen. Press ✕ Back to return.

Drag any screen onto another to swap their positions.

Hover a screen → click 🔊 to unmute it. All channels start muted.

Layout, order & visibility are saved. Settings survive page refresh.