void StartDragging ( [UViewportInteractor](API\Editor\ViewportInteraction\UViewportInteractor) * Interactor, [UActorComponent](API\Runtime\Engine\Components\UActorComponent) * ClickedTransformGizmoComponent, const FVector & HitLocation, const bool bIsPlacingNewObjects, const bool bAllowInterpolationWhenPlacing, const bool bShouldUseLaserImpactDrag, const bool bStartTransaction, const bool bWithGrabberSphere )