Hi, > Is this mean that if this property is true in config and I set my boolean > property to false it will be ignored ?
No. If you do this it will be false. var prop:Boolean = false; If you do this it will be true. var prop:Boolean = true; If you do this: var prop:Boolean; it will be false and act the same as in ActionScript rather than be undefined as it is currently is in FlexJS. Thanks, Justin