diff --git a/MyEnums.mqh b/MyEnums.mqh
index 7f1f029..2926a55 100644
--- a/MyEnums.mqh
+++ b/MyEnums.mqh
@@ -35,4 +35,12 @@ enum  MULTI_SYM_MODE{
     MULTI_SYM_CHART,    // Chart Symbol only
     MULTI_SYM_FX_B5,    // FX Benchmark 5
     MULTI_SYM_FX_28     // FX 28 Majors
+};
+
+enum MODE_SPLIT_DATA{
+    NO_SPLIT,   
+    ODD_YEARS,  
+    EVEN_YEARS,
+    // ODD_MONTHS,
+    // EVEN_MONTHS 
 };
\ No newline at end of file
diff --git a/MyFunctions.mqh b/MyFunctions.mqh
index 9634c92..80ac591 100644
--- a/MyFunctions.mqh
+++ b/MyFunctions.mqh
@@ -1,6 +1,7 @@
 #property library
 #include <Trade/Trade.mqh>
 #include <MyLibs/TradingWindow.mqh>
+#include <MyLibs/MyEnums.mqh>
 
 class MyFunctions : public CObject{
 
@@ -20,7 +21,7 @@ class MyFunctions : public CObject{
       double   get_bid_ask_price(string symbol, int price_side);
       bool     is_new_bar(string symbol, ENUM_TIMEFRAMES time_frame);   
       bool     trade_window(string t1, string t2, string time_zone, bool plot_range_inp=true);
-
+      bool     in_test_period(MODE_SPLIT_DATA data_period);
 };
 
 bool MyFunctions::trade_window(string t1, string t2, string time_zone="Broker", bool plot_range_inp=true){
@@ -38,6 +39,48 @@ bool MyFunctions::is_new_bar(string symbol, ENUM_TIMEFRAMES time_frame){
    return false;
 }
 
+//if(!mf.in_test_period(data_split_method){return;}
+bool MyFunctions::in_test_period(MODE_SPLIT_DATA data_split_method){
+
+   string result[];
+   string string_tc = TimeToString(TimeCurrent());
+   ushort u_sep = StringGetCharacter(".",0); 
+   int split_string = StringSplit(string_tc, u_sep, result); 
+   
+   bool even_year = int(result[0]) % 2;
+   // bool even_month = int(result[1]) % 2; // need to remove the leading 0 for this to work.    
+
+   if(data_split_method==NO_SPLIT){
+      return true;
+   }
+
+   if(data_split_method==ODD_YEARS){
+      if (!even_year){
+         return true;
+      }
+   }
+
+   if(data_split_method==EVEN_YEARS){
+      if (even_year){
+         return true;
+      }
+   }
+
+   // if(data_split_method==ODD_MONTHS){
+   //    if (!even_month){
+   //       return true;
+   //    }
+   // }
+
+   // if(data_split_method==EVEN_MONTHS){
+   //    if (even_month){
+   //       return true;
+   //    }
+   // }
+
+   return false;
+}
+
 // e.g. if(!mf.is_new_daily_bar(symbol, StringToTime("00:06"))){return;}
 bool MyFunctions::is_new_daily_bar(string symbol, datetime start_time){
     // https://www.youtube.com/watch?v=9BdnTcGrlUM (m-25:00)
diff --git a/NNFX_TestFileHeader.mqh b/NNFX_TestFileHeader.mqh
new file mode 100644
index 0000000..668b3fa
--- /dev/null
+++ b/NNFX_TestFileHeader.mqh
@@ -0,0 +1,26 @@
+#include <MyLibs/Myfunctions.mqh>
+#include <MyLibs/OrderManagement.mqh>
+#include <MyLibs/MyEnums.mqh>
+#include <MyLibs/CustomMax.mqh>
+CustomMax cm;
+MyFunctions mf;
+OrderManagment om;
+//---  
+input LOT_MODE  inp_lot_mode    = LOT_MODE_PCT_RISK;    // Lot Size Mode
+input double    inp_lot_var     = 2;                    // Lot Size Var
+input SL_MODE   inp_sl_mode     = SL_ATR_MULTIPLE;      // Stop-loss Mode
+input double    inp_sl_var      = 1;                    // Stop-loss Var 
+input TP_MODE   inp_tp_mode     = TP_ATR_MULTIPLE;      // Take-profit Mode
+input double    inp_tp_var      = 1.5;                  // Take-Profit Var
+string lot_mode = EnumToString(inp_lot_mode);
+string sl_mode  = EnumToString(inp_sl_mode);
+string tp_mode  = EnumToString(inp_tp_mode);
+input CUSTOM_MAX_TYPE inp_custom_criteria = CM_WIN_PERCENT_200T;
+input MULTI_SYM_MODE inp_sym_mode = MULTI_SYM_FX_B5;
+input MODE_SPLIT_DATA inp_data_split_method = NO_SPLIT;
+input int inp_force_opt = 1;
+input group "-----------------------------------------"
+//----
+string bm5_symbols[] = {"EURUSD", "AUDNZD", "EURGBP", "AUDCAD", "CHFJPY"};
+string fx28_symbols[] = {"EURUSD","AUDNZD","AUDUSD","AUDJPY","EURCHF","EURGBP","EURJPY","GBPCHF","GBPJPY","GBPUSD","NZDUSD","USDCAD","USDCHF","USDJPY","CADJPY","EURAUD","CHFJPY","EURCAD","AUDCAD","AUDCHF","CADCHF","EURNZD","GBPAUD","GBPCAD","GBPNZD","NZDCAD","NZDCHF","NZDJPY",};
+