The indicator displays harmonic patterns on a chart based on a Dynamic zigzag (https://www.mql5.com/ru/market/product/5356), and is an almost complete analogue of one of the versions of the well-known korharmonics. The indicator recognizes the following shapes and their varieties: ABCD, Gartley (Butterfly, Crab, Bat), 3drives, 5-0, Batman, SHS, One2One, Camel, Triangles, WXY, Fibo, Vibrations. By default, only the ABCD and Gartley shapes are displayed in the settings. The reverse line helps to determine the moment when the opposite vertex is fixed. Many configurable parameters.
Version for Meta Trader 5: https://www.mql5.com/ru/market/product/5195
A description of the parameters can be downloaded here.