I'm in the process of evaluating Mezzmo Pro and want to create some playlists at the server. But, the selections in the Create Playlist pull-down are greyed out and not selectable. Maybe it's because I'm using the trial version of Mezzmo? I have a large library of music files and want to be able to create playlists for some subset of the files. For example, a Christmas playlist containing all the Xmas music. Help! (running server on Windows 10)