Minor request for soundamus.net integration

[Lore]

Hi,

I just discovered the soundamus.net service and its integration with MusicBee.
It's a great service but I'd need the following: I think you're getting data using the feed provided by the service, something like http://www.soundamus.net/soundamus/user/xxx/rss (where xxx is the username). I noticed that it's possible to select the list of data sources (useful to exclude e.g. amazon sites, that also sell artist mugs, t-shirts and so on); when doing so, a parameter is added to the url, so that it becomes something like http://www.soundamus.net/soundamus/user/xxx/rss?sx=xxx (it seems to always start with s)
Is it possible to add a parameter field (e.g. in new releases settings page) to consider the extra parameter (I would put sx=xxx there)? Or a field where the complete url of the feed may be put (so that, if the url format changes, it can be easily replaced)?
Thanks and regards,
Lore