virtual void SetParameterNamespace ( const [FNiagaraParameterPanelItem](API\Plugins\NiagaraEditor\FNiagaraParameterPanelItem) ItemToModify, [FNiagaraNamespaceMetadata](API\Plugins\NiagaraEditor\FNiagaraNamespaceMetadata) NewNamespaceMetaData, bool bDuplicateParameter )