How to Update exported SubWeldment

I am using SW2013 64bit with SP3.

I have broken down a complex weldment into subweldments. I have exported the subweldments into new files by RMC on the subweldment folder in the cutlist and selecting "Insert into New Part...". All of this works as expected. In the new part, all of the weld bodies show up as "Stock-..." in the feature tree.

Now I have modified the master/top/original weldment by adding some bodies. I moved these new bodies into one of the subweldment folders. Can I update the exported part file to show these two new additional bodies?

I understand a work-around would be to save the new bodies as separate part files and then insert them individually into the subweldment part.

Is there a method for updating?

Thanks, Daen

SolidworksWeldments