Is it possible to add all group attributes using one mapper into the token?

I have multiple custom attributes associated with a Group. To get these attributes in a token, I’m creating a client scope and adding a mapper, of type User Attribute. At the end, I’m adding this client scope into my applications client scope and I see my attribute in the token. So far so good.
I have plenty of such attributes. To get all of them into a token, I need to write those many mappers.

Is there a simple way to add all those attributes using a single mapper?