Developer Settings

Developer Settings is a class that shows up in Project Settings to configure values without needing to create a Blueprint.

Requirements:

• Create a class that derives from UDeveloperSettings.

• Assign a config category to the class, for example:[UClass(config: "Game")].

• Any property you want to edit must be marked with PropertyFlags.Config.

• Object references can't be saved to config. They need to be soft referenced through TSoftObjectPtr<> or TSoftClassPtr<>.

[UClass(config: "Game")]
public partial class UMyDeveloperSettings : UDeveloperSettings
{
    [UProperty(PropertyFlags.EditAnywhere | PropertyFlags.Config)]
    public partial float MyConfigFloat { get; set; }
    
    [UProperty(PropertyFlags.EditAnywhere | PropertyFlags.Config)]
    public partial TSoftObjectPtr<UMaterialInterface> MyConfigMaterial { get; set; }
}

If you now open the project settings, you can find your custom developer settings there.

How to get the values in C#:

public override void BeginPlay()
{
    UMyDeveloperSettings settings = GetDefault<UMyDeveloperSettings>();
    if (settings.MyConfigMaterial.IsValid)
    {
        // Do something with the material
    }
}