Hi,
Can you check if Transitive attribute will meet your requirement?
http://help.sap.com/saphelp_nw73/helpdata/en/4a/420ee4402c0451e10000000a421937/content.htm
If a characteristic was included in an InfoCube as a navigation attribute, it can be used for navigating in queries. This characteristic can itself have further navigation attributes, called transitive attributes. These attributes are not automatically available for navigation in the query. However, this procedure describes how you can display the transitive attributes in the query via modeling.
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Regards,
Raja.