NSCell is an abstract superclass, these fields are usually serialized by its subclasses.
|NSControlView||reference||The Control that owns this cell, usually it's parent.|
|NSSound||NSCustomResource||(optional)The sound a cell should play when activated.|
|NSPeriodicDelay||int||(optional)The amount of time in ms before the cell should process incoming events after it begins processing one.|
|NSPeriodicInterval||int||(optional)The ammount of time the cell should appear to aknowledge an event(e.g. button displays as pressed)|