Apart from they've now removed that functionality (from A class (mar 2006) / B class at least), although it can be coded back by someone with Star Diagnosis in 'factory mode' (which needs a password issued by MB once a month, and they don't like giving it out to their dealers, and the ability to speak a bit of German to understand the extra menus it enables in the Star Diagnosis
software)
They;ve also taken out key-dependance and a few other menus - I guess simplifcation reduces support costs. (even I asked the dealer to sort out something odd with the seat memories in my SL which was caused by key-dependnce on and me picking up the wrong set of keys which didnt have my usual seat memory positions stored in position 1, but had some extreme setting)