To create a playlist in ProVideoPlayer 1, click the plus (+) button in the lower-left corner of the Playlist column. You can give the playlist any name you want and can have an unlimited number of Playlists.
If you have media in your Library or another Playlist that you want to include in the new Playlist, Command-click the files you want to move to the new Playlist and then drag them to the Playlist name. This does not move the clip from the Library or the original Playlist, but creates a new instance of that file in the new Playlist.
You can add content to the Library or a Playlist by dragging it from the Finder directly, clicking on the plus (+) in the lower-left corner of the slide table, or by selecting File>Import Media.