[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=URigHierarchyController) [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) AddNull ( [FName](API\Runtime\Core\UObject\FName) InName, [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) InParent, FTransform InTransform, bool bTransformInGlobal, bool bSetupUndo, bool bPrintPythonCommand )