Is there a simple way to make the backside of a NSC Diffraction Grating/User Defined+DiffractionGrating.DLL the diffractive side? I’ve been fighting with rotating objects 180° and then fixing the effects of that but that allows for too many places to get lost and complicate my builds. Is there a setting or trick I’m missing or should I attempt a custom .DLL? Important note: I’ll split these by a _RCWA.DLL