ODD constrained attribute class membership

Der TEI community,

I’m currently working on a schema definition using ODD and have some attributes defined in a class. Now I want to define an element that allows only certain attributes of that class.
I tried using @exclude in the memberOf definition but that didn’t work. So I came up with the idea to use attest/attRef and reference the specific attribute I want to allow. That would work if there was another element being a member of the specified class but all elements use only certain attributes of that class…

The attribute class is att.linking and should group all attributes that hold references to uri:s, other elements and the like. At the moment it holds only two attributes ‘uri’ and ‘name.ref’ (referencing another elements @name – comparable to referencing xml:id but not not constrained to the uniqueness of xml:id across a xml file). More attributes might come up that would fit in this class.

Is there a technical solution to this or is it rather a modelling problem?
In any case, maybe you could help me with some ideas of how to tackle this problem!

Many thanks,
Benjamin