CompositeEffect is lacking a removeChild and removeAllChildren method

Those methods are often needed when working with the effects programmatically

Workaround:

Get, modify, then set the children array, for example:

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark">
<fx:Script>
<![CDATA[
protected function playEffect(event:MouseEvent):void

{ // remove the Resize var a:Array = eff.children; a.pop(); eff.children = a; // play the effect eff.play() }

]]
>
</fx:Script>

<fx:Declarations>
<s:Sequence id="eff" target="

{target}

">
<s:Move xBy="100" />
<s:Resize widthBy="100" />
</s:Sequence>
</fx:Declarations>

<s:Button label="target" id="target" click="playEffect(event)" />

</s:Application>