ArguUML - Class Diagram - display Operation without formals

Hallo,

I am searching for an UML Modelling Tool and found ArgoUML. I think it will
suit my needs, but I miss 1 feature (or I don't find it).

Is it possible to hide the operation formals in a class diagram?

For instance i have a Method
+ bar(i: int, a: float, c : Object) : Bar

Now i want to display this method in an overview class diagram like
+ bar()

Is this possible?

Thanks in advance

-- Thomas

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