Currently, the plugin doesn't really have a feature to show recently added files. Maybe in a later release I can add some time related filters, so that you can specify only files that have been modified within a certain date range (before, and after a certain date). I never thought of that, but it is a good feature to request.
What I suggest that you do is to post a comment in the Improvement Suggestion topic, explaining how you would want the feature to work. That way, I can easily keep track of it for next release.