How do you duplicate an existing drumset without re-creating it from scratch?

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Creating a Drumset using Logic Pro EXS consolidated caf files?

Phil- Thanks for the input. Another question if you can help - is there a way to copy an existing drum set, change the midi mapping of a few notes, and rename it, so the original drum set is still intact? Or… where are the individual samples filed so I can create a custom drum set? I’m on a Mac… Thanks