[xwiki user] Exporting just a single space

Hi, It's probably me, but I can't seem to find a way to export specific spaces. In earlier version of the import/export there was a drop down and you could select specific spaces & pages to export... now it seems to only export the entire wiki. I had a nasty problem with my wiki (some pages were "bad" and when I tried to delete them I got told they didn't exist) and thought... I know, I'll just export the good stuff and drop the db then import my good pages back in... I couldn't becuase export seems to be exporting the whole wiki (despite a space parameter in the url). So, question is can I export specific pages / spaces only & if so any hints :) Thanks, Dan