Hi Ingo Kohlbach,
Please go to SU22, and select respective transaction code.
Then System will provide the list of the authorization object list.
You may then get documentation for each of the authorization
objects at SU21.
In order to create, generate and assign authorization profiles You
have to use the SAP Profile Generator (Transaction PFCG).
With the Profile Generator You can generate User Roles. Then You have
to assign the role to the user (SU01).
Thanks.
Best Regards,
YH Loh