In the editor, the selected code is replaced by a COPY statement that refers to the new copybook and shows it in expanded copybook view. The case of the statement is as defined on the Formatting page in Tools > Options > Text Editor > Micro Focus COBOL.
If you chose to save the copybook in a directory other than the default, this also adds that directory to the list of copybook locations on the Copybooks tab in the project’s properties.