Multiple cameras on the device tab
A single-camera full-screen
A single camera can be maximized to cover the whole work area with the mouse LEFT double-clicking it.The second mouse LEFT double-click returns a single camera to the original size.
Device tab full-screen
A whole device tab can be maximized to cover the whole work area with the mouse RIGHT double-clicking it.The second mouse RIGHT double-click returns the device tab to the original size.