Any way to specify in the text flow that the story should be continued in the next column or container?

I have a work around for determining the 'next' container. In this example I determine the number of lines in a container and continue to monitor any overflow using the compositionCompletionEvent. If the number of lines exceeds the container, that container is flagged with a red border. Presumably a new textFlow container could be added programmatically.

private function handleCompositionCompletionEvent(compositionCompletionEvent:CompositionCompletionEvent):void
{
trace("number of lines: " + textFlow.flowComposer.numLines);
trace("height of this container: " + this.height);

var numLines:int = textFlow.flowComposer.numLines;

try
{
var fontSize:Number = Number(IEditManager(textFlow.interactionManager).getCommonCharacterFormat().fontSize);
var lineHeight:String = String(IEditManager(textFlow.interactionManager).getCommonCharacterFormat().lineHeight);
var lineSpace:Number = Number(lineHeight.replace("%","")) / 100;
var overFlow:int = (fontSize * lineSpace) * numLines;

// give user notice that of text overflow if the container is NOT linked
if(this.isLinked == false)
{
if(overFlow > this.height)
{
canvas.setStyle("borderStyle","solid");
canvas.setStyle("borderColor","#CC0101");
canvas.setStyle("borderThickness",2);
}
else
{
canvas.setStyle("borderStyle","none");
}
}
else // this is a linked container
{
// alert user if the text added exceeds the available container space
var heightUsed:Number = textFlow.flowComposer.getControllerAt(objectHandlesIndex).calculateHeight();

if(heightUsed > canvas.height)
{
canvas.setStyle("borderStyle","solid");
canvas.setStyle("borderColor","#CC0101");
canvas.setStyle("borderThickness",2);
}
else
{
canvas.setStyle("borderStyle","none");
}
}


}
catch(e:Error){}

}