SID Name	Description	Rating	Updated
	540 ATR	Plot the ATR (Average True Range - Welles Wilder Version) on a chart	Not Approved	2007-08-15

The logic for this chart:

#Plot The ATR (average true range) indicator - fetch the parameter from the GUI
my $parm=ChartInputSlider('ATR Bar',45,26,50);
#Plot the ATR in Blue
PlotColumn(ATR($parm),Blue);