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Can you please help me?

for my indicator, I need to store some data Items for each bar, But the number of Items is more than 7. only two of them have to be shown on screen but about 9 others are only for back side calculations. Is it possible to use arrays like indicator buffers with automatic shifting when new bar? any solutions or code samles?

thanks.

I myself solved it like this. Hope this is useful to others.

extern int SlowPeriod=21;
 
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue
#property indicator_color2 Red
//---- buffers
double U[];
double D[];
 
//Arrays instead of indicator buffers as many as you like
double Price[];
double H[];
 
 
int indexbegin = 0;
static datetime CurrTime;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
{
   SetIndexBuffer(0,U);
   SetIndexLabel(0, "UpTrend");
   SetIndexEmptyValue(0, NULL);
   SetIndexStyle( 0, DRAW_LINE);
 
   SetIndexBuffer(1,D);
   SetIndexLabel(1, "DownTrend");
   SetIndexEmptyValue(0, NULL);
   SetIndexStyle( 1, DRAW_LINE);
 
   //All of the arrays must be initiated:
   ArrayResize(Price,Bars);
   ArraySetAsSeries(Price,true);
 
   ArrayResize(H,Bars);
   ArraySetAsSeries(H,true);
 
   for (int i = Bars-1; i >= 0; i--)
   {    
      Price[i]=Close[i];      
   }
 
   indexbegin = Bars - 20;
   if (indexbegin < 0)
    indexbegin = 0;
    
   return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
{
   int i,j;
   
   //Shifting all arays one cell because of new bar
   if(CurrTime != Time[0])
   {
      for (i = Bars-2; i > 0; i--)
      {    
         Price[i+1]=Price[i];
         H[i+1]=H[i];
      }

      //Initializing values for new bar

      Price[0]=Close[0];
      H[0]=0;
      S[0]=0;
   
   }



   //For every thick these values must be renewed
   Price[0]=Close[0];
   
   CurrTime=Time[0];
 
   //rest of code like an Ordinary indicator. you can use H , S , other arrays the same way as indicator buffers
   int counted_bars = IndicatorCounted();    
   //---- check for possible errors
   if (counted_bars < 0) counted_bars = 0;
   //---- last counted bar will be recounted
   if (counted_bars > 0) counted_bars--;
   if (counted_bars > indexbegin) counted_bars = indexbegin;
 
   for (i = indexbegin-counted_bars; i >= 0; i--)
   {    
      //Ordinary indicator
 
   }
   return(0);
}