PDF Column display and Preview question

Is it possible for Opus to display the number of pages in a pdf file in the lister view?

The column shows the correct page count for Word documents, but not for PDF or OpenOffice documents. I've tried saving the pdfs using different options (preview image, etc), but that doesn't seem to make any difference.

Is this something I need to enable somewhere in Opus? Or should I submit this as a feature request/enhancement?

I think Opus only looks for the page count information in Office documents at the moment so it's a feature request.