How can I create a parametric actor with n subcomponents in code?

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1

I can create Components using PCIP::CreateDefaultSubobject but I need to create a parametric Actor, lets say a matrix of spheres in which I can change the Rows and Colums in the editor. I’m using PostEditChangeProperty to catch when the parameters are changed but I cannot find how to add or remove the MeshComponents.
Can anyone help me understand how to create a hierarchy with dynamic container with n meshes?

2

Finally after a lot of debug into the engine I found a solution. Here’s a code sample that works so far. I don’t know if this is safe and leak-free but it’s a starting point.

AMyActor::AMyActor(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
    RootComponent = ConstructObject<USphereComponent>(
        USphereComponent::StaticClass(), this, TEXT("sphere"));
}

void AMyActor::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
    auto box = ConstructObject<UBoxComponent>(
        UBoxComponent::StaticClass(), this, TEXT("box"));
    box->SetFlags(RF_DefaultSubObject);
    box->AttachTo(RootComponent);
    RegisterAllComponents();
    
    Super::PostEditChangeProperty(PropertyChangedEvent);
}