[vlc] VLC v. 0.9.2 playlist on a Mac

[Fran Calcraft]

   What I would like to know is what is the function of the button with 
the plus sign at the bottom of the playlist window?  The textbox that 
comes up when you click it asks you to enter the name of a node.  I 
never realized that multimedia players had nodes.  What is a node for 
VLC?  What kind of syntax does the name of a node use, and what can you 
do with a node?