Question: I cant get the media library to work. It is empty.
Answer: On VLC itself (not the remote), drag or add files (or folders) to the Media library (View->PlayList -> Media Library)
If you have added a folder, open each folder once on VLC itself.
The remote control should now pick it up, and you will be able to select an item from it to play.
Question: How do I clear a source I added?
Answer: Yes, you can clear an added source, by swiping left to right on the source.
It will then display option to delete.
You can also use this method to delete items from playlist.