help me., how Code MA to appear on the back of the candle?

[[Deleted]]

I've been using this indicator long enough,. now I want to change the zoom,. how to keep this indicator is behind candle but do not use the chart on the foreground in the properties,. I've tried to add some code in MQL's but always error.

//+------------------------------------------------------------------+
//|                                                    MA_Ribbon.mq4 |
//+------------------------------------------------------------------+

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 PeachPuff
#property indicator_color2 LightGreen
#property indicator_color3 Aqua
#property indicator_color4 Magenta
#property indicator_width1 4
#property indicator_width2 4
#property indicator_width3 3
#property indicator_width4 3

//
//
//
//
//

extern int       MA1Period=50;
extern int       MA1Method=MODE_SMA;
extern int       MA1Price =PRICE_CLOSE;
extern int       MA2Period=30;
extern int       MA2Method=MODE_SMA;
extern int       MA2Price =PRICE_CLOSE;

//
//
//
//
//

double buffer1[];
double buffer2[];
double buffer3[];
double buffer4[];

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//
//
//
//
//

int init()
{
   SetIndexBuffer(0,buffer3); SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexBuffer(1,buffer4); SetIndexStyle(1,DRAW_HISTOGRAM);
   SetIndexBuffer(2,buffer1);
   SetIndexBuffer(3,buffer2);
   return(0);
}
int deinit()
{
   return(0);
}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//
//
//
//
//

int start()
{
   int counted_bars=IndicatorCounted();
   int limit,i;
   
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
           limit=Bars-counted_bars;

   //
   //
   //
   //
   //

   for(i=limit; i>=0; i--)
   {
      buffer1[i] = iMA(NULL,0,MA1Period,0,MA1Method,MA1Price,i);
      buffer2[i] = iMA(NULL,0,MA2Period,0,MA2Method,MA2Price,i);
      buffer3[i] = buffer1[i];
      buffer4[i] = buffer2[i];
   }
   return(0);
}