rendering a 360 Panorama (Cyclorama) to 8 screens

Development Rendering
52

I want to use 9 cameras in total. 8 cameras, because of th 8 views and a 9th camera for showing the scene from the top.
So, I assign the 8 cameras as shown using the “Auto Activate” from the editor.
for the 9th camera I am doing the same thing, but from c++, since the editor only allows us to do this for up to 8 cameras.

I am searching for the correct cameras by name like this within my custom GameMode:

for (TObjectIterator<ACameraActor> Itr; Itr; ++Itr) {
    ACameraActor *actor = *Itr;
    if (actor->GetWorld() == GetWorld()) {
        const FString actorName = actor->GetName();
        if(actorName.Equals("SpectatorCamera")) {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Cyan, actorName);
            SpectatorCamera_ptr = actor;
   }
}

once I have found the CameraActor, I do this:

    APlayerController* PlayerControllerPtr = UGameplayStatics::GetPlayerController(GetWorld(), 8);
    GetWorld()->RegisterAutoActivateCamera(SpectatorCamera_ptr, 8);
    if(PlayerControllerPtr) {
        PlayerControllerPtr->SetViewTarget(SpectatorCamera_ptr);
    }

I found this within the source code of ACameraActor