[TYPO3-shop] Markers for credit card data?

[Simon Browning]

I noticed on ttproducts.org that it mentions:  "The input of creditcard 
data in one schedule (now with all fields of a creditcard) and 
selectboxes for month/year. " in talking about 2.5.3.

Are there markers for the credit card fields, I can't find reference to 
them in the manual or templates.

Thank you.

Simon