Use ( .t3d or clipboard ) for make prefab

Development Programming & Scripting
4

So I looked in the source code to create a plugin, I found a way to validate the clipboard.
It’s very strange, you have to select a component on an actor before making the copy, it creates a anything in it, then after the clipboard is validated and it’s possible to make the paste.
I may have found a track in the source code, the validation starts with check if it is components and not actors, I will try to redo a function for that, and maybe it will be possible to make the prefab system directly in the engine.

UUnrealEdEngine::edactPasteSelected(UWorld* InWorld, bool bDuplicate, bool bOffsetLocations, bool bWarnIfHidden, FString* SourceData)

if (GetSelectedComponentCount() > 0)
	{
		AActor* SelectedActor = CastChecked<AActor>(*GetSelectedActorIterator());

		TArray<UActorComponent*> PastedComponents;
		FComponentEditorUtils::PasteComponents(PastedComponents, SelectedActor, SelectedActor->GetRootComponent());

		if (PastedComponents.Num() > 0)
		{
			// Make sure all the SCS trees have a chance to update
			FLevelEditorModule& LevelEditor = FModuleManager::LoadModuleChecked<FLevelEditorModule>("LevelEditor");
			LevelEditor.BroadcastComponentsEdited();

			// Select the new clones
			USelection* ComponentSelection = GetSelectedComponents();
			ComponentSelection->Modify(false);
			ComponentSelection->BeginBatchSelectOperation();
			ComponentSelection->DeselectAll();

			for (UActorComponent* PastedComp : PastedComponents)
			{
				GEditor->SelectComponent(PastedComp, true, false);
			}

			ComponentSelection->EndBatchSelectOperation(true);
		}
	}
	else