With Opus 2 version 7.4, e
Highlight the portion of text within documents that you would like copied to the Clipboard, and click on the Clipboard button in the resulting Notes dialog.
In the Clipboard dialog, the two citation options will appear at the bottom. Check one or both to include either document title and/or document reference to the portion of text being copied.
Once selection is made, hit COPY.
The resulting text, when pasted, will include the document title or reference, as selected: