Ho to sort values of multi-value attribute

Is it possible to sort the value list of a multi-value attribute in the same order as one can see in attribute configuration?

For example: I have defined an attribute with 3 values:

• Cat
• Dog
• Horse

and this is the order that a any user will see in the  combo-box when he will assign a value for the attribute (of a model, an object,...).

Since it is possibile to change the predefined order, I need to know the current one. But in ArisMetaModel class I didn't find any method to do it.

Does anyone know if it is possible and how to?

Maggiù P.