Blueprint config variable set from ini file

Hello,

I declared 1 Vector2D variable named RealScreenSizeMeters into my BP Manager_Blueprint as “Config Variable”.
I create 1 instance into my scene.
I set its value into the details panel to (4.0, 2.0).

When I define it into the config file \Config\DefaultEngine.ini

[/Game/Manager_Blueprint.Manager_Blueprint_C]
RealScreenSizeMeters=(X=2.000000,Y=1.000000)

If I reload my project, value into the details panel is well to (2.0, 1.0).

Now I build the package for Windows and I would like to define its value into any INI config file.

I tried the file \WindowsNoEditor\Saved\Config\WindowsNoEditor\Engine.ini => NOK

I tried the file \WindowsNoEditor\Saved\Config\WindowsNoEditor\Game.ini => NOK

I tried the file \WindowsNoEditor\Saved\Config\WindowsNoEditor\GameUserSettings.ini => NOK

How can I set its value from any INI config file ?

Thank for your help

they are loaded once on opening the project