Modify > Clone with descendants
This feature is available from the Modify Menu when the selected asset is a (SKOS) taxonomy concept. It can be used to clone a whole sub-tree of the concept hierarchy. The operation opens a dialog where you can confirm and preview the change.
Hint
The operation will create computer-generated identifiers/URIs for each new asset, basically appending something like “_1” to the end of the old URIs. You may want to post-process the clones using Modify > Replace to apply your preferred URI naming conventions.
See Also
Further Reading on Taxonomies
Further Reading on Modify Menu
Further Reading on TopBraid