@priort I have found that with the exception of putting lightness slider at 0% the hue and lightness sliders have no effect if chroma is set to 0.0 so being lazy that is what I do if a neutral grey is the desired color match.
I defer to more knowledgeable people who may answer this question after my post. The default has the option active and since I don’t know any valid reason to change it I just leave it as I found it. It is discussed in the user guide but I didn’t see why I would inactivate it.