Indicator that marks the 20-bar candlestick
If you copy and paste the following code into MetaEditor for MT5, you can do it.
If you ask Chat GPT for the detailed method, it will teach you politely.
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//+------------------------------------------------------------------+
//| Display orange dots for 20 bars including the current bar (stable version) |
//+------------------------------------------------------------------+
#property indicator_chart_window
#property strict
input int BarsBack = 20; // How many bars back including the current one
input color DotColor = clrOrange; // Color of the dots
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