Damn those documents get hefty quick, and I can’t quite seem to find a way to say a given element has an attribute that should reference an element in another container. <!-- Given: --> <xs:element name="Languages"> <xs:complexType> <xs:sequence> <xs:element name="Language"> <xs:complexType> <xs:attribute name="Code" type="xs:language" use="required"/> <!-- ... --> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> <xs:element> <!-- How [...]