Found this in the manual and have tried that too but no luck.
Open... lets you choose a saved Playlist to appear in the Playlist window to play instantly.
Note: If you upgraded and have older Hoster 1.0, 2.0 or 3.0 Playlists, they are expanded with the new 4.0 features with -4 appended before the .hst (ex: Joes Bar Friday-4.hst).
