That page URL:
https://winscp.net/eng/docs/library_example_moves_files_keeping_directory_structure
And there's a link that points to the documentation:
https://winscp.net/eng/docs/ui_pref_commands#extensions
There it is explained that you go to Preferences > Commands and click Add > Add Extension.
https://winscp.net/eng/docs/library_example_moves_files_keeping_directory_structure
And there's a link that points to the documentation:
https://winscp.net/eng/docs/ui_pref_commands#extensions
There it is explained that you go to Preferences > Commands and click Add > Add Extension.