Dual Scale Candles MT4 draws a second symbol's candles over your chart, with the second symbol's own prices on a separate left scale. Compare two instruments on one chart. The overlay uses a linear price mapping to fit the second symbol to the chart. Choose alignment at the first available bar of the current day or week, at the oldest drawn bar, or choose Range Fit. Day and week modes show a vertical anchor line. If the beginning of the period is not loaded, the label identifies the partial peri