I should have included a little more information on my original posting. I was origianlly unable to use the copy and paste functionality, and this what several people said I should try. I have even tried copy and paste on some other very simple assemblies, and just flat out doesn't work here for some reason. Other's suggested that I use the Excel functionality in the family table. We had tried this as well, and it didn't work either.
I did get it working finally. Ultimately, what did work was to export the family table, edit the names in the exported file, and then import the family table in.
Thanks for all the suggestions...
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