[TYPO3-templavoila] default content when page has no content

[Bartosz Aninowski]

Hi
I am looking for solutions to add default content form  page A to page B 
when page B has no content.
Here is my traditional way

colLeft =COA
colLeft {
5 < styles.content.getLeft
10 = COA
10 {
5 <  temp.defaultLeft.get
if.isFalse.numRows < styles.content.getLeft
}
}

Can you give me some hint how to achieve similar behaviour with TV.
I use typo3 4beta1 with latest beta TV
p.s I found some info on TV wiki page [1] but it doesn't solve my problem :(

[1] 
http://wiki.typo3.org/index.php/TemplaVoila#Reusing_content_elements_automatically