Additional code that records balance and equity charts and calculates additional optimization criteria.

Connecting functions for saving balance, equity, and optimization statistics graphs for Advanced Optimization Report

If you have access to the Expert Advisor code, you can extend the report by adding additional code.

Download the Advanced Optimization Report Saver.mqh file from attached link below and save it to the terminal folder \MQL5\Include\

Add the code that connects the downloaded file: (you can add it below the last line of your Expert Advisor code or anywhere else)

#include <Advanced Optimization Report Saver.mqh>

Then, you need to add calls to the exported functions to the existing functions in your Expert Advisor: (if there are no functions, add them)

void OnTick(){
   //... your code
   
   //Save balance and equity charts
   save_OnTick(TimeCurrent(), AccountInfoDouble(ACCOUNT_BALANCE), AccountInfoDouble(ACCOUNT_EQUITY));
}

void OnTesterInit()  {
   //... your code

   save_OnTesterInit();//print to chart "Do not close this window until the optimization is complete!"
}
void OnTesterDeinit(){
   //... your code

    save_OnTesterDeinit();// get frames
}

double OnTester(){
   //... your code

   //save any custom values:
   double AvgPips=0;
   save_Add( AvgPips, 2, "Custom 1", true);//value, digits, name, sort_min_to_max
   save_Add( TesterStatistics( STAT_PROFIT ), 2, "Custom 2");
   double Custom = 0;//your Custom fitness
   saveCharts(Custom);//save final equity, all deals...
   return Custom;
}

In the highlighted area, you can add your own criteria that you want to include to the Advanced Optimization Report.

For example, let's add this code to the Moving Average Expert Advisor from the Examples folder (...\MQL5\Experts\Examples\Moving Average\Moving Average.mq5). First, copy the original Expert Advisor and name it Moving Average Charts.mq5. Now, add the code from the instructions above to it.

The changes are only at the very end of the code, starting from the OnTick() function:

void OnTick(void)
  {
//---
   if(SelectPosition())
      CheckForClose();
   else
      CheckForOpen();
   //Save balance and equity charts
   save_OnTick (TimeCurrent(), AccountInfoDouble( ACCOUNT_BALANCE), AccountInfoDouble( ACCOUNT_EQUITY));
  }

void OnTesterInit()  {
   //... your code

   save_OnTesterInit();//print to chart "Do not close this window until the optimization is complete!"
}
void OnTesterDeinit(){
   //... your code

    save_OnTesterDeinit();// get frames
}

double OnTester(){
   //... your code

   //save any custom values:
   double AvgPips=0;
   save_Add( AvgPips, 2, "Custom 1", true);//value, digits, name, sort_min_to_max
   save_Add( TesterStatistics( STAT_PROFIT ), 2, "Custom 2");
   double Custom = 0;//your Custom fitness
   saveCharts(Custom);//save final equity, all deals...
   return Custom;
}

#include <Advanced Optimization Report Saver.mqh>

As you can see, it's quite simple and only takes a couple of minutes.

After that, you can run the optimization:

The last screenshot shows that the connected code added 2 parameters:

1. Save Statistics - enables or disables the collection of statistics
2. Pixels in balance and equity charts - specifies the number of pixels in the width of mini-charts.

Once the optimization is complete, you can create a report and see the following:

100 lines with MovingPeriod

10 lines with MovingShift

If there are more than 20 lines, only 3 horizontal lines of average values will be displayed: 3 on top and 3 on the bottom.

It is difficult to perceive 100 lines, so you need to use filters. Alternatively, you can resize the chart to 100% of the screen width or click on the chart to open it in Google Charts, which allows you to zoom using the mouse wheel.
It is even better to use input variables not with the same step, but with a scale through an enumerator (enum), for example: 1,2,3,5,7,10,15,20,30,50,70,100 - there will be only 12 lines instead of 100.

enum nums1 {__0=0, __1=1, __2=2, __3=3, __5=5, __7=7, __10=10, __15=15, __20=20, __30=30, __50=50, __70=70, __100=100, __150=150, __200=200, __300=300, __500=500};
input nums1 MovingPeriod = 10; // Moving Average period

You can download the enum version of the Expert Advisor below.

Instead of 1000 optimization passes, there will be 120, and the calculation time will be ~8 times faster, and the file size will be ~8 times smaller.
The result is more visible:

The result with MovingPeriod = 15 stands out immediately, with the highest average line and the highest maximum.
However, as is often the case, the best results on the backtest are not the best on the forward test:

You can open and examine the resulting report.