Setting gcAllowVeryLargeObjects

Hello all,
Since I want to handle a byte array larger than 2GB,
When building an application with standalone (Windows_x64)
I want to set gcAllowVeryLargeObjects in the .NET Framework configuration file,
but I do not know where to put it.
Does anyone know?

I would also be keen to know the answer to this if anyone’s figured it out?

Also would like to know.