Changing Ordering of a Dimension Attribute

I have a dimension attribute called Month. It is sorting alphabetically instead of based on it's underlying key value. How do I change this?

Thanks,

ChrisChange the order by from "Name" to "Key". No idea what "Attribute Name" and "Attribute Key" do however.|||If you choose attribute name, you can define the order by another field.
I have in each dimension an order field and I have configured each dimension to sort by this field. By default I fill in this field with name. But if a user request another order I can change values in this field without changing dimension structure.