How to add a new UWorld to Engine In Pluging

Development Programming & Scripting UI
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1

I want to add a new UWorld instance to engine in my pluging.

UWorld * World = UWorld::CreateWorld(EWorldType::Editor,true);

It work when StartupModule. And I have a SceneOutliner.

	UWorld * World = UWorld::CreateWorld(EWorldType::Editor,true);
	FActorSpawnParameters Parameters{};
	Parameters.Name = "hehe";
	
	World->SpawnActor(AStaticMeshActor::StaticClass(),nullptr,nullptr,Parameters);
	auto Res = GEngine->GetWorldContexts();
	UE_LOG(LogTemp,Warning,TEXT("Number: %d"),Res.Num());
	// GWorld = World;
	SceneOutliner::FInitializationOptions InitOptions;
	InitOptions.SpecifiedWorldToDisplay = World;
	check(World); //ok not null
	FSceneOutlinerModule& SceneOutlinerModule = FModuleManager::Get().LoadModuleChecked<FSceneOutlinerModule>("SceneOutliner");
	Outliner = SceneOutlinerModule.CreateSceneOutliner(InitOptions,FOnActorPicked::CreateRaw(this,&FHotEditUiModule::HandleActorPicked));

but the log Numer of Res is 1. It’s PIE of default.
Run
The word of SceneOutliner not is my new world. It’s PIE also.
I See the source code of SSceneOutliner. The problem from here

	// check if the user-chosen world is valid and in the editor contexts
		if(UWorld* UserChosenWorld = SharedData->UserChosenWorld.Get()) //not have my word
		{
			for (const FWorldContext& Context : GEngine->GetWorldContexts())
			{
				if(UserChosenWorld == Context.World())
				{
					SharedData->RepresentingWorld = UserChosenWorld;
					break;
				}
			}
		}
// when I add this line. the outliner of my world can be render right. not default pie
		// SharedData->RepresentingWorld = SharedData->UserChosenWorld.Get();

how to add world instance to contexts of GEngine->GetWorldContexts()