virtual void BuildContextMenu ( [FMenuBuilder](API\Runtime\Slate\Framework\MultiBox\FMenuBuilder) & MenuBuilder, [TOptional](API\Runtime\Core\IO\TOptional)< [FCurvePointHandle](API\Editor\CurveEditor\FCurvePointHandle) > ClickedPoint, [TOptional](API\Runtime\Core\IO\TOptional)< [FCurveModelID](API\Editor\CurveEditor\FCurveModelID) > HoveredCurveID )