How can I qualify associations?

UML
1

How can I qualify an association like in picture above?

I’m studying the UML language and using UML Community Edition.

Thanks in advance.

Rafael

2

After a lot of hunting, as this does not appear to be in the help.

I found you can add a Qualified associated, by right clicking on one end of an association and choosing ''Qualifier…" , then choose ‘Add’ to define the class that qualifies.