[amibroker] PlotShape does not work in exploration

["voyager_3k" <voyager3k@xxxxxxxxxxx>]

I've the following code that, i assumed, should have
plotted an arrow on the chart in an exploration.  Anyone 
know if there is something wrong with the code?

AddColumn(... );
...
PlotShapes(shapeDownArrow, colorRed, 0, Low);
GraphXSpace = 5;
...






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