The Expert Advisor is based on the indicator with the same name Candle shadow percent. Lot is calculated based on the risk value as a percentage of free margin.
Attention: in this Expert Advisor, it is assumed that the Candle shadow percent indicator is located in the \Indicators\MyInd\Candels\ folder, which is clear from OnInit()
  m_money.Percent(Risk); //--- create handle of the custom indicator   handle_iCustom=iCustom(m_symbol.Name(),Period(),"MyInd\\Candels\\Candle shadow percent",                           __1__,
You will need to edit the path to the Candle shadow percent indicator in OnInit, if it is located in another folder.
The Expert Advisor only performs actions at the moment of a new emergence, and it does not work inside the bar.Â
Position opening conditions:
- if the value of the “Candle shadow percent” indicator on the bar indexed 1 in the 0 buffer (“BufferTop”) is not equal to zero, i.e. an there is an arrow on this bar, Sell will be opened
- if the value of the “Candle shadow percent” indicator on the bar indexed 1 in the 1 buffer (“BufferLow”) is not equal to zero, i.e. an there is an arrow on this bar, Buy will be opened
Recommendations for debugging: first adjust parameters only for the upper shadow, then only for the lower shadow.