The Zig Zag indicator with a sound alert on appearance of a new line on the chart.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/7367
Clearly displays the gaps in points as a colored histogram.Demark Lines
My version of plotting the DeMark lines, also draws channels in addition to the trend lines and targets. Added one more target (the third one defined as 1.62 of the inner extremum), added the signal cancellation when closing within the channel.