method parameter list - how to switch between single- and multiline?

Hi,

I'm sure I just didn't find the magic keystroke combo yet...

I simply want to switch by keystroke between following basic formattings.

void someMethod(Class a, Class b, Class c) {...} //singleline

and

void someMethod( //multiline
    Class a,
    Class b,
    Class c
) {...} 

Same goes for method invocations, array initialization etc.

I'm putting this in the IntelliJ topic, but I guess this is (should be) a general feature in all products.