Have you tried cosmetic hole patterns? It is not the same, as it can only do squares, not rectangles.
Do you need this for renderings? If so I wonder if there is a modo appearance that you could import in, I couldn't find one with a quick web search but that doesn't mean someone doesn't have one. If this is for rendering, move this thread to the PhotoView360 forum section (it's in the top right under Actions), as this is not a surfacing question.
Thanks for your reply. Yes that's exactly what I'm looking for, but I could not find the right cosmetic pattern that represented bar grating.
I'll follow your suggestion.