Thinking outside the square - if calibre published a URI link to books like some other database applications do, then they could not only be used within calibre itself, but in other applications too. Something like calibre://library_uuid||book_uuid.
Meantime you could put a file link into the split-off books' Comments columns (or custom long text columns) to the anthology book folder in which you have stored a book format with the metadata in a form suitable for humans - maybe an epub that just has a book jacket.
Or maybe there's a program that can present (probably in a browser) a metadata.opf in a format suitable for humans - it would need to style it somehow. You'll see what I mean if you drop a metadata.opf into a browser
BR
|