Need to duplicate categories

I had to completely restart my zencart process after many years. I need to replicate my subcategories several times across master categories. The copy categories plugin has been removed from the downloads so im wondering if there is another method to accomplish this?

This may help:
https://github.com/torvista/Zen_Cart-Multiple_Products_Copy_Move_Delete

Thank you. I guess I wasn't very clear. I'm not trying to copy products, just the category structure. Just as we have the "move" option for categories I need to copy.
I have for example
widget a
--part set 1
--part set 2
--part set 3
widget b
(need all 3 part set categories here)

Products within those "part set" areas are different. I have about 20 widgets that have probably 30+ "part set" categories under them. I would rather create a master widget and duplicate all the "part set" categories to other widgets, then I will have to manually add the products.

Thanks for any pointers