Gives a list of all available screens.
This node fires an event with an updated list of screens whenever it sees a change in the screens available — specifically, when the composition starts or this node is added to a running composition, or when a new screen is attached or detached.
If display mirroring is enabled (System Preferences > Displays > Arrangement > Mirror Displays), this node only outputs one screen (since all mirrored screens are treated identically).
Keywords: bang, device, display, events, fire, monitor, trigger