Hi Klas,
thx a lot for the warning. I thougth about a custom table too. But i need the connection to a joomla article because i need joomlas access control. I guess i could construct a key, which behaves like primary key. BeforeStore Field with a simple +1 adding should do it :)
Update: My mistake. Since the id in the form tables is a primary key, but with no auto_increment, i can still define my key with auto_increment and unique. Thats all what i need. SEBLOD rocks! I rock too!
Best regards