FOCUS Enhancements 3.2 - Manual (Page 135)

External Control Commands
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VCC Control Commands:
Filenames and External Commands
When using external commands to handle files, it is necessary for those
files to have names without, i.e. sales_video.mpg not sales video.mpg.
One convention is to use underscores in place of spaces.
Playlist Playback Commands
Playlistload
This command allows you to preload a playlist preparing it for
playback. Playlistload loads up a playlist preparing it for playback.
This command allows you to initiate playback when precision
timing is desired. An mpgPlay or mpgPlayAll command is
required to start playback.
Syntax
Playlistload name once
Parameters (optional)
name
Name of the playlist file (e.g., loop1.fpl). You do not need to include the
.fpl extension.
once
0 loops the playlist endlessly (default). 1 plays the playlist once through
and stops.