Cutlists "part number" column does not show in upper level BOM

I have  a created a number of weldments which I have  added to an assembly drawings. Since  doing this, my customer  has  asked that I give each weldment  member a Part Number. This I have done  by adding  a partnumber column & part numbers into each  cutlist. My problem  is that  the resulting indented BOM shows  the description column from the cutlists  but  not the  part number. column.

SolidworksBill Of Materials