Navigational Attributes for master data attributes in Multiprovider

Hi,

We are using SAP BW 7.3.We have designed a multi provider on a dso.Here the problem is

we have added Equipment number and site number as objects to the dso. Here both these objects are master data

and also site number is the attribute of Equipment number.As we have these objects in multiprovider as well,we get all the navigational attributes of site number and equipment number.But how do we get the navigatinal attiributes of site unit number which is the attribute of equipment number(not the original site unit number in the multiprovider).Is there any chance that we can get them as navigational(attibutes of an attribute which is master data )

Could someone help on this

Thanks.

Regards,

Hemalatha