I´m in Odoo 9 a little bit confused with the Access rights (Administration) for a user.

Editing the User settings I´ve (under Applications) the possibility to choose between 4 different values for Administration:

A) blank

B) Configuration

C) Access Rights

D) Settings

Are - if "Configuration" is chosen - the rights for "Access Rights"/"Settings" granted too, resp. if "Access Rights" is chosen - the rights for "Settings"?

Or am I wrong with?

Where can I find the documentation for?

Ask friendly the community to enlighten me! Thank you very much! :-)