@fanllawf Same, I want to find a way to access subfolders too. What a coincidence I found this year old thread the day after you responded to it too!
I've put a lot of effort into organizing my media library on my PC so its all neat and tidy, but that pretty much goes out the window for Videostream. I have "(2001) Cowboy Bebop" in ~Media Library\Movies\Anime. That clearly shows up in Videostream mobile as "Cowboy Bebop." Cool, it even removed the year for me, that's pretty helpful! But I also have the entire show in ~MediaLibrary\TV Shows\Anime under "Cowboy Bebop" with every episode neatly titled "Session x - 'Episode Name'" At first I thought it wasn't appearing in Videostream at all, because I couldn't find it. However, it is actually called "Session" in the videostream app...
I wouldn't mind not having access to my folder organization if we could at least manually rename / organize them in the mobile or desktop app itself.