A sub-page of Streams.
Every movie and playlist belongs to a movie group. When the audio track or the subtitles are changed in a menu, they change for all movies and playlists of the group.
Default audio/subtitles - the list of the movie groups of the project with the default audio and subtitle tracks of each group. These tracks are selected for all movies and playlists of the group when the disc starts. Double-click a group to rename it.
Audio, Subtitles - the default audio and subtitle track numbers of the group selected in the list. A subtitle track number of 0 turns the subtitles off; a negative number selects the track with that number but keeps the subtitles off.
Set - applies the values to the group selected in the list.