How do I break the link in bill of materials table?

There are parts contained inside an assembly that I would like to display in the bill of materials. When I apply the balloons, the same number automatically is given to different parts within the same assembly. I believe that there is a link that does this. Typically I can just double click the balloon and override the number but in this case both materials change when I change one of them. Is there a way around this? 

SolidworksDrawings And Detailing