I was told no for Chalcedony PG, but this was based on the “preapproved” SO list, which has a typo of Chalcedony + PG combos where it should read Chalcedony + WG combos. However, this was through my NM where they are not the most knowledgeable, honestly. I have had better luck through stand alone VCA, so it’s worth a try. I will ask again about my combo if you get approved, since I have only had GMOP approved so far (and now we know why it was so easy for that one!), good luck and update is when you hear back. The last I heard they were not able to get SO requests approved in Paris yet, I put in another request just before the lockdown and no word yet.
Still it took about 2 years to make them.