[TYPO3-shop] Extending the form for generating a fe_user

[Reto Schmid]

Hi all,

I generate a user automaticly as a fe_user if he order some products.
Now, i like to extend the form with the posibility to register for the 
newsletter...
Actually there are two fe_groups "newsletter" and "no newsletter".

Is it possible to extend the form with a selection for this 2 groups?

Thanks and best regards
reto