Add more bodies to an existing part created from sub-weldment

Hello all,

I have a weldment part that includs a few sub-weldments. I created individual parts from these sub-weldments and now I've added more structural bodies to the main part but these bodies do not show up in the sub-weldment parts!

I do not want to recreate the subweldment parts as this will mess up the detail drawings so I was wondering If there is a way to solve this problem?

Thanks

SolidworksWeldments