Serviio

I was trying to search for the answer, but apparently the search doesn't like three letters words, so searching for "FTP" is hard. Couldn't find the answer anywhere else also sadly.
Basically, I have an FTP server somewhere on the Internet with my media files. Previously I was downloading them and playing from local PC through Serviio. Now I have a fibre broadband I wanted to try to stream from the FTP server directly. But I can't seem to find any way to do that with Serviio. Is that possible?

The only way would be to generate an RSS feed of the content on the server (with a script on the server to keep the feed fresh, infact it would probably require multiple feeds to organise content), and then add that as an online source in Serviio.