Because no NASDAQ composite index or NYSE composite index provide data volume, this script intends to use the NASDAQ Composite total volume index, index ticker : TVOLQ, or the NYSE Composite total volume index, index ticker : TVOL, as a classical volume indicator on chart.
How tu use : in the input tab choose youe prefered SMA lenght and the volume' index ticker you want to display. TVOLQ for the NASDAQ Composite total volume or TVOL for the NYSE Composite total volume.
On chart, choose to display the indicator in a new pane.