Change customer attribute position in backend

I've successfully added Customer Attributes that appear correctly in the backend. But I cannot change their position.

I've search in the eav_attribute and customer_eav_a开发者_开发技巧ttribute tables and haven't found any position field which is strange because both at attribute setup and in Mage_Customer_Model_Entity_Setup, it is possible to specify a position in the setup array.

Of course, while setting up my new customer attributes, I correctly gave a position key => value to my new attributes.

Does someone have a clue on how to change customer's attributes position in the backend ? Or the sorting key is unfortunately the attribute_id ?

Thanks a lot for your help!

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You can specify this relation in the table eav_entity_attribute.