[UNiagaraHierarchyItemBase](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\UNiagaraHierarchyItemBase) * CopyAndAddItemAsChild ( const [UNiagaraHierarchyItemBase](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\UNiagaraHierarchyItemBase) & ItemToCopy )