How to add different part number coloumn in BOM for multiple configuration assy

Hello,

I want to use BOM for multiple cofiguration assembly.

but problem is I want to add only part number coloumn in  BOM table for different configuration, Because other parameters are same.

I tried to select multiple configurations while inserting BOM but it just adding extra coloumn for quantity of different configurations.

I also tried to add coloumn & assigned it custom property but again it shows same part numbers.

Does anyone know how to do that?

I am attaching the snap shot for BOM option. Am i selecting it correctly?

I am currently using solid works 2010

Regards.....Vijay

SolidworksDrawings And Detailing