//+------------------------------------------------------------------+
//|                                                           BU.mq4 |
//|                                  Copyright 2023, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2023, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict

extern double BULevel       = 1;      // уровень БУ
extern double BUPoint       = 0.2;       // пункты БУ
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---
   
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
//---
  BU(); 
  }
//+------------------------------------------------------------------+
void BU()
  {
   bool m;
   
   double atr = iATR(Symbol(),PERIOD_M15,14,0);
   
   for(int i=OrdersTotal()-1; i>=0; i--)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol())
           {
            if(OrderType()==OP_BUY)
              {
               if(OrderOpenPrice()<=(Bid-(BULevel+BUPoint)*atr) && OrderOpenPrice()>OrderStopLoss())
                 {
                  m=OrderModify(OrderTicket(),OrderOpenPrice(),OrderOpenPrice()+BUPoint*atr,OrderTakeProfit(),0,Yellow);
                  return;
                 }
              }

            if(OrderType()==OP_SELL)
              {
               if(OrderOpenPrice()>=(Ask+(BULevel+BUPoint)*atr) && (OrderOpenPrice()<OrderStopLoss() || OrderStopLoss()==0))
                 {
                  m=OrderModify(OrderTicket(),OrderOpenPrice(),OrderOpenPrice()-BUPoint*atr,OrderTakeProfit(),0,Yellow);
                  return;
                 }
              }
           }
        }
     }
  }