Sorry I was not more clear in my original post. The need to move the folder of photos off the internal HD is actually the big issue due to space and scratch disc issues. I am assuming LRCats do not take up much space and thougth keeping them all on the internal HD together would make the most sense but redirecting them photos stored somewhere else.
I do back ups and archives but honestly all the names of LRCAT mean absolutely nothing to me other than idea of year .... but once I update them... all bets are off.
I have just updated one LRcat from 20013 and now want to move all those photo folders to another HD . Took a very long time for that to complete. This could become a MAJOR time eater to do that to all the folders of images I am trying to move on internal hard drive.