FRetargetPoseViewportClient ( [FPreviewScene](API\Runtime\Engine\FPreviewScene) & InPreviewScene, const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SRetargetPoseViewport](API\Plugins\IKRigEditor\RetargetEditor\SRetargetPoseViewport) > & InRetargetPoseViewport )