My Book World Edition II White lights - downloader setup

I have set up the torrent downloader, and it is great for the simple use I am putting it to.  However, there is not much available in terms of configuration.  For example, there is apparently a maximum active download number of 3, but I can’t find a way to change that parameter.  Further, if I want to change the priority of downloads there is a marvelous, albeit totally blank, “arrangement” page.

Am I missing something, or is this all we get from WD?  Is there no advanced setup access anywhere?