MQL5 Is it possible to Pause Backtesting when an order is opened by Using Coding?

No that doesn't Pause the Back Testing. 

if(trade.Buy(LotSize,NULL,Ask,(Bid-StopLoss)-(50*Point()),0,"Neural Network Indicator Signal"))
         {
            DebugBreak();
            
            //Create Label
            ObjectCreate(ChartID(),(string)PositionLabel,OBJ_TEXT,0,TimeCurrent(),Bid-indATR14PriceArray[0]*4);
            ObjectSetString(ChartID(),(string)PositionLabel,OBJPROP_TEXT,"NN");
            ObjectSetInteger(ChartID(),(string)PositionLabel,OBJPROP_COLOR,clrLime);
            ObjectSetDouble(ChartID(),(string)PositionLabel,OBJPROP_ANGLE,90);
            ObjectSetInteger(ChartID(),(string)PositionLabel,OBJPROP_BACK,false);
            ObjectSetInteger(ChartID(),(string)PositionLabel,OBJPROP_SELECTABLE,false);
            PositionLabel = PositionLabel+1;
            
            //Take ScreenShot
            string name=Symbol()+" "+(string)TimeCurrent()+".jpg";
            int replaced=StringReplace(name,":"," ");
            if(PrintScreen==true)ChartScreenShot(ChartID(),name,1700,1080,ALIGN_RIGHT);
            
            //Remember Current Time Stamp for Next Time
            TimeStampLastCheck = TimeStampCurrentCandle;
         }
         else
         {
            Print("Error Opening the Position: ",GetLastError()," - ",ErrorDescription(GetLastError()));
         }

Thanks again.
I'm trying to find a way to pause the Strategy Tester on Visualization Mode when an Order is executed. 
Is there anyway just to send a keystroke "space";

#import "user32.dll"
    void keybd_event(int bVk, int bScan, int dwFlags,int dwExtraInfo);
#import
#define VK_SPACE 0x20 //Space
#define VK_RETURN 0x0D //Return - Enter Key
#define KEYEVENTF_KEYUP 0x0002  //Key up

//Pause During Test
            if(MQLInfoInteger(MQL_TESTER) && MQLInfoInteger(MQL_VISUAL_MODE))
            {
               keybd_event(VK_SPACE, 0, 0, 0);
               keybd_event(VK_SPACE, 0, KEYEVENTF_KEYUP , 0);
            }

@Christos Papageorgiou what Alain Verleyen said is working.

Just add DebugBreak(); after you open the position, select Visualize and Start debugging. See attached screenshots (I don't know how to embed them).