The indicator marks the pin bars on the chart based on the parameters set, such as:

The indicator settings window

The chart's display at "Only extremum = false"

The chart's display at "Only extremum = true"
Hints:
Tradotto dal russo da MetaQuotes Ltd.
Codice originale https://www.mql5.com/ru/code/13703
Forex Fraus (for M1)
The Expert Advisor is based on the Williams Percent Range indicator. It sells in the overbought zone and buys in the oversold zone. Trailing Stop and operation timer are attached to it.
The Expert Advisor based on 2 lines of the Moving Average
The Moving Average indicator values are used for trading.
Elementary trailing stop
Elementary trailing stop able to distinguish its "own" orders among others by comment and/or Magic number. It also distinguishes the financial instrument that needs to be trailed.
OrderTimeAlert
The Expert Advisor watches the market orders and generates a sound signal after a predefined time from the moment of order opening.