cannot generate C# interfaces

[gtschech]

When modelling in EA, I can mark a class with the stereotypp <<interface>>.
After marking that clas as being coded in C#, I would have anticipated that the code would generate an interface, just as
public interface Idontknow
{
 void InterfaceMethod();
}

but EA generates a class, which is not what I need.
If I change 'class' to 'interface' in the source file, EA does not recognize this code any more and recreates the class.
How and where do I have to set flags so that the code generation actually produces an interface?

Guenter from Frankfurt/Germany

[Eve]

You need to use an interface element.  (It appears in the class toolbox just under class.)

You can also change your class in the model into an interface.  (Element | Advanced | Change Type)