[UOptimusNodePin](API\Plugins\OptimusCore\UOptimusNodePin) * AddGroupingPinDirect ( [FName](API\Runtime\Core\UObject\FName) InName, [EOptimusNodePinDirection](API\Plugins\OptimusCore\EOptimusNodePinDirection) InDirection, [UOptimusNodePin](API\Plugins\OptimusCore\UOptimusNodePin) * InBeforePin )