bool AlertsFound[26][2][4][3];

the [26] uses pair_i

#define TF_1    0
#define TF_2    1

#define BubbandHalf_HOOK_NOW     0
#define DoubleBubble_HOOK_NOW    1
#define Penetrator_RT_SIDE_NOW   2
#define BBandCross_NOW           3

Etc.  
 
int start()
  { 
  ...
  
   if(BarTime !=Time[0])
   {
     
      int alertsarraysize = ArraySize(AlertsFound);
      ArrayFill(AlertsFound, 0, alertsarraysize , 0);
	  
	...  
	BarTime=Time[0];
	}
	}  

void DisplayPairData(    )
		...
		
         else if(BubbandHalf_HOOK_SELL)
         {
            myColor=BubRed;
            DisplayWingDingObject(ThisObject,Star ,myColor,x_coord[BH_TF1],y_pos,3);
            
            if(Alert_BubbandHalf_Hook && AlertsFound[pair_i][TF_1][BubbandHalf_HOOK_NOW][SELL] ==false) 
            {  
			   //Comment("SELL AlertsFound[pair_i][TF_1][BubbandHalf_HOOK_NOW][Dir]= //,AlertsFound[pair_i][TF_1][BubbandHalf_HOOK_NOW][Dir]); 
               State = "SELL";
               AlertsFound[pair_i][TF_1][BubbandHalf_HOOK_NOW][SELL] = true;
               MessageText = "BubbandHalf_HOOK_Now";  
	            ChartTime = TimeToString(TimeCurrent(),TIME_DATE|TIME_MINUTES);
	            isSignal = true; 
	         }
	     	}

         if(Alert_BubbandHalf_Hook && isSignal == true) 
            {
               Msg = pair_n + " " +tf2txt(TimeFrame1) +"  "+ ChartTime + "  "+MessageText+" "+State;
               SendAlert(Msg);
               isSignal = false;
            }
         
      }
	  
void SendAlert(string msg)
{
Alert(msg);
}