The indicator sets the "Fixed scale" property to a chart window and holds the first bar in the middle of the window. If you move the chart, the rightmost bar will be placed in the middle of the window.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/18152
The WmiVol indicator with the timeframe selection option available in input parameters.GRFLeadingEdger_Pivot
Two colored filled rectangles drawn between the values of two GRFLeadingEdger indicator channels on one bar.