Containers allow multiple tracks to be packed into a single item. This is useful, for example, when you need to create a non-breakable group of tracks.
The Container item is cross-faded according to the tracks it contains. The fade-in for the container item equals the fade-in of the first track in the container. Fade out and mix are equal to fade out and mix of the last track in the container. You can also pack ad playlists into a container. Container contents can be edited: right-click it in the playlist, select Tools -> Edit/rename.
