[Lavender]

I've been enjoying the fact that calibre seems to automatically sync new news downloads to the kobo device each time I sync it to the library, but is there a way for this process to automatically delete the news items which are no longer in the calibre library? I have each news feed set to not keep items older than a week, but they seem to stay on my kobo device forever. I'd rather not have to manually delete the old files each time I sync it.