diff --git a/Experts/2MA_Cross.mq5 b/Experts/2MA_Cross.mq5
index f418770..e4f4636 100644
--- a/Experts/2MA_Cross.mq5
+++ b/Experts/2MA_Cross.mq5
@@ -1,6 +1,6 @@
-#property copyright "Copyright 2017-2019, Artur Zas"
+#property copyright "Copyright 2017-2020, Artur Zas"
 #property link      "https://www.az-invest.eu"
-#property version   "1.10"
+#property version   "1.11"
 
 //
 // Uncomment only ONE of the 3 directives listed below and recompile
@@ -22,15 +22,15 @@
 
 #ifdef EA_ON_RANGE_BARS
    #include <AZ-INVEST/SDK/RangeBars.mqh>
-   RangeBars customBars = RangeBars(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+   RangeBars *customBars = NULL;
 #endif
 #ifdef EA_ON_RENKO
    #include <AZ-INVEST/SDK/MedianRenko.mqh>
-   MedianRenko customBars = MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+   MedianRenko *customBars = NULL;
 #endif
 #ifdef EA_ON_XTICK_CHART
    #include <AZ-INVEST/SDK/TickChart.mqh>
-   TickChart customBars = TickChart(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+   TickChart *customBars = NULL;
 #endif
 
 #include <AZ-INVEST/SDK/TimeControl.mqh>
@@ -65,8 +65,8 @@ int numberOfBars = 3;
 
 // EA variables
 
-CMarketOrder *marketOrder;
-CTimeControl timeControl;
+CMarketOrder   *marketOrder = NULL;
+CTimeControl   *timeControl = NULL;
 
 ulong currentTicket;
 ENUM_POSITION_TYPE currentPositionType;
@@ -91,6 +91,19 @@ ENUM_POSITION_TYPE validation;
 //+------------------------------------------------------------------+
 int OnInit()
 {
+   if(customBars == NULL)
+   {
+      #ifdef EA_ON_RANGE_BARS
+         customBars = new RangeBars(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+      #endif
+      #ifdef EA_ON_RENKO
+         customBars = new MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+      #endif
+      #ifdef EA_ON_XTICK_CHART   
+         customBars = new TickChart(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+      #endif   
+   }
+   
    customBars.Init();
    if(customBars.GetHandle() == INVALID_HANDLE)
       return(INIT_FAILED);
@@ -111,6 +124,11 @@ int OnInit()
    
    marketOrder = new CMarketOrder(params);
    
+   if(timeControl == NULL)
+   {
+      timeControl = new CTimeControl();
+   }
+   
    timeControl.SetValidTraingHours(Start,End);
    
    return(INIT_SUCCEEDED);
@@ -121,9 +139,30 @@ int OnInit()
 void OnDeinit(const int reason)
 {
    customBars.Deinit();
+
+   //  delete TimeControl class
+   
+   if(timeControl != NULL)
+   {
+      delete timeControl;
+      timeControl = NULL;
+   }
       
+   //  delete MarketOrder class
+   
    if(marketOrder != NULL)
+   {
       delete marketOrder;
+      marketOrder = NULL;
+   }
+  
+   // delete MedianRenko class
+   
+   if(customBars != NULL)
+   {
+      delete customBars;
+      customBars = NULL;
+   }   
       
    Comment("");
 }
@@ -132,7 +171,7 @@ void OnDeinit(const int reason)
 //+------------------------------------------------------------------+
 void OnTick()
 {
-   if(marketOrder == NULL)
+   if(marketOrder == NULL || customBars == NULL || timeControl == NULL)
       return;
       
    if(customBars.IsNewBar())
diff --git a/Experts/ExampleEA.mq5 b/Experts/ExampleEA.mq5
index c9cd39e..f7f4afb 100644
--- a/Experts/ExampleEA.mq5
+++ b/Experts/ExampleEA.mq5
@@ -1,12 +1,12 @@
 //
-// Copyright 2017-2019, Artur Zas
+// Copyright 2017-2020, Artur Zas
 // https://www.az-invest.eu 
 // https://www.mql5.com/en/users/arturz
 //
 
-#property copyright "Copyright 2017-2019, Artur Zas"
+#property copyright "Copyright 2017-2020, Artur Zas"
 #property link      "https://www.mql5.com/en/users/arturz"
-#property version   "3.00"
+#property version   "3.01"
 #property description "Example EA showing the way to use the MedianRenko class defined in MedianRenko.mqh" 
 
 //
@@ -31,13 +31,16 @@
 //  Example shown in OnInit & OnDeinit functions below:
 //
 
-MedianRenko medianRenko = MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+MedianRenko    *medianRenko = NULL;
 
 //+------------------------------------------------------------------+
 //| Expert initialization function                                   |
 //+------------------------------------------------------------------+
 int OnInit()
 {
+   if(medianRenko == NULL)
+       medianRenko = new MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+
    medianRenko.Init();
    if(medianRenko.GetHandle() == INVALID_HANDLE)
       return(INIT_FAILED);
@@ -54,6 +57,16 @@ int OnInit()
 void OnDeinit(const int reason)
 {
    medianRenko.Deinit();
+
+   // 
+   // delete MedianRenko class
+   //
+   
+   if(medianRenko != NULL)
+   {
+      delete medianRenko;
+      medianRenko = NULL;
+   }   
    
    //
    //  your custom code goes here...
diff --git a/Experts/ExampleEA3.mq5 b/Experts/ExampleEA3.mq5
index 7060be1..73b68eb 100644
--- a/Experts/ExampleEA3.mq5
+++ b/Experts/ExampleEA3.mq5
@@ -1,12 +1,12 @@
 //
-// Copyright 2017-2019, Artur Zas
+// Copyright 2017-2020, Artur Zas
 // https://www.az-invest.eu 
 // https://www.mql5.com/en/users/arturz
 //
 
-#property copyright "Copyright 2017-2019, AZ-iNVEST"
-#property link      "http://www.az-invest.eu"
-#property version   "1.10"
+#property copyright "Copyright 2017-2020, Artur Zas"
+#property link      "https://www.az-invest.eu"
+#property version   "1.11"
 #property description "Example EA showing the way to use the MedianRenko class defined in MedianRenko.mqh" 
 #property description "as well as external indicators attached to the RenkoCharts" 
 
@@ -34,17 +34,20 @@ input int InpRSIPeriod=14; // RSI Period
 //  Example shown in OnInit & OnDeinit functions below:
 //
 
-MedianRenko medianRenko = MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
-int RsiHandle = -1;
+MedianRenko    *medianRenko   = NULL;
+int            RsiHandle      = -1;
 
-double RsiBuffer[];              // This array will store the RSI values for the renko chart
-MqlRates RenkoRatesInfoArray[];  // This array will store the MqlRates data for renkos
+double         RsiBuffer[];            // This array will store the RSI values for the renko chart
+MqlRates       RenkoRatesInfoArray[];  // This array will store the MqlRates data for renkos
 
 //+------------------------------------------------------------------+
 //| Expert initialization function                                   |
 //+------------------------------------------------------------------+
 int OnInit()
 {
+   if(medianRenko == NULL)
+       medianRenko = new MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+
    medianRenko.Init();
    if(medianRenko.GetHandle() == INVALID_HANDLE)
       return(INIT_FAILED);
@@ -58,6 +61,16 @@ void OnDeinit(const int reason)
 {
    medianRenko.Deinit();
 
+   // 
+   // delete MedianRenko class
+   //
+   
+   if(medianRenko != NULL)
+   {
+      delete medianRenko;
+      medianRenko = NULL;
+   }   
+
    //
    //  your custom code goes here...
    //
diff --git a/Experts/PriceMA_Cross.mq5 b/Experts/PriceMA_Cross.mq5
index fb1e0f9..ae3f727 100644
--- a/Experts/PriceMA_Cross.mq5
+++ b/Experts/PriceMA_Cross.mq5
@@ -22,15 +22,15 @@
 
 #ifdef EA_ON_RANGE_BARS
    #include <AZ-INVEST/SDK/RangeBars.mqh>
-   RangeBars customBars = RangeBars(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+   RangeBars *customBars = NULL;
 #endif
 #ifdef EA_ON_RENKO
    #include <AZ-INVEST/SDK/MedianRenko.mqh>
-   MedianRenko customBars = MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+   MedianRenko *customBars = NULL;
 #endif
 #ifdef EA_ON_XTICK_CHART
    #include <AZ-INVEST/SDK/TickChart.mqh>
-   TickChart customBars = TickChart(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+   TickChart *customBars = NULL;
 #endif
 
 #include <AZ-INVEST/SDK/TimeControl.mqh>
@@ -64,7 +64,7 @@ int numberOfBars = 4;
 // EA variables
 
 CMarketOrder *marketOrder;
-CTimeControl timeControl;
+CTimeControl *timeControl;
 
 ulong currentTicket;
 ENUM_POSITION_TYPE currentPositionType;
@@ -89,6 +89,19 @@ ENUM_POSITION_TYPE validation;
 //+------------------------------------------------------------------+
 int OnInit()
 {
+   if(customBars == NULL)
+   {
+      #ifdef EA_ON_RANGE_BARS
+         customBars = new RangeBars(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+      #endif
+      #ifdef EA_ON_RENKO
+         customBars = new MedianRenko(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+      #endif
+      #ifdef EA_ON_XTICK_CHART   
+         customBars = new TickChart(MQLInfoInteger((int)MQL5_TESTING) ? false : true);
+      #endif   
+   }
+
    customBars.Init();
    
    signal = POSITION_TYPE_NONE;
@@ -107,6 +120,11 @@ int OnInit()
    
    marketOrder = new CMarketOrder(params);
    
+   if(timeControl == NULL)
+   {
+      timeControl = new CTimeControl();
+   }
+   
    timeControl.SetValidTraingHours(Start,End);
    
    return(INIT_SUCCEEDED);
@@ -117,9 +135,30 @@ int OnInit()
 void OnDeinit(const int reason)
 {
    customBars.Deinit();
+
+   //  delete TimeControl class
+   
+   if(timeControl != NULL)
+   {
+      delete timeControl;
+      timeControl = NULL;
+   }
       
+   //  delete MarketOrder class
+   
    if(marketOrder != NULL)
+   {
       delete marketOrder;
+      marketOrder = NULL;
+   }
+  
+   // delete MedianRenko class
+   
+   if(customBars != NULL)
+   {
+      delete customBars;
+      customBars = NULL;
+   }   
       
    Comment("");
 }