How to make n-ary association

[Marek]

Hello, I have two qustetion.
1. How can I make n-ary association between 4 classes? There is only association class between two classes in my version (3.10 trial version). User guide shows n-ary association but only between classes company, salary and employee.
2. Is it possible to create association class between classes A and B from existing class C (I mean change type class to association class).
Thanks Marek