最强大和最稳定的图表覆盖指标，图表叠加(Chart Overlay)指标在同一图表上显示几种工具的价格走势，使您能够评估不同符号之间的相对波动情况。 它的主要用途是找到暂时不可用的相关符号。(The)(indicator displays the price action of several instruments on the same chart, allowing you to evaluate how different symbols fluctuate relative to each other. Its main usage is to find correlated symbols which are temporarily out of whack.)