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It is sometimes necessary to plot two symbols on the same scale to get a proper comparison. For example, chartists may want to plot interest rates on one scale to see the spreads. The Bullish Percent Indices range from zero to one hundred, which makes them natural candidates for same-scale charting. Plotting these on one scale makes it easier to identify differences and compare absolute levels.
Chartists can plot two symbols on one-scale by using the "Price (same scale)" overlay in the Chart Attributes section. Simply choose this option from the drop down menu and then enter the symbol in the parameters box. Users can also change the line style and color to differentiate the second plot.
