//+------------------------------------------------------------------+
//|                                                      NumBars.mq4 |
//|                                              Copyright 2020, AM2 |
//|                                      http://www.forexsystems.biz |
//+------------------------------------------------------------------+
#property copyright "Copyright 2020, AM2"
#property link      "http://www.forexsystems.biz"
#property version   "1.00"
#property strict
#property indicator_chart_window

input int bar=55;
string abc[10] = {"A","B","C","D","E","F","G","H","I","J"};

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping

//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Put Text Function                                                |
//+------------------------------------------------------------------+
void Text(string name,const string text,double price,datetime time)
  {
   ObjectDelete(0,name);
//--- create a "Text" object
   ObjectCreate(0,name,OBJ_TEXT,0,time,price);
//--- set the text
   ObjectSetString(0,name,OBJPROP_TEXT,text);
//--- set the font of the text
   ObjectSetString(0,name,OBJPROP_FONT,"Arial");
//--- set the font size
   ObjectSetInteger(0,name,OBJPROP_FONTSIZE,16);
//--- set the method binding
   ObjectSetInteger(0,name,OBJPROP_ANCHOR,ANCHOR_TOP);
//--- set the color
   ObjectSetInteger(0,name,OBJPROP_COLOR,White);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//---

   for(int i=bar,k=0; i>=0; i--,k++)
     {
      Text(string(i),abc[k],high[i],time[i]);
      if(k>8) k=0;
     }

//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+

Не работает у меня( В чем может быть проблема?