The following article explains the difference between the Copy tool and the Clone tool.
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This tool creates a new item as a pointer to the original source. This tool is useful for multiple users all working on the same content. It is available in the basic version of Admin Tools.
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This tool creates brand new items, with its dependencies configured automatically, and no longer pointing to the original data source it was cloned from. This is a very useful tool for moving a content into a new organization. The Clone tool available in the Pro version of Admin Tools.
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