See https://www.inaturalist.org/flags/509682 - note that while this swap will achieve the desired effect of making Kyphosus sandwicensis inactive and a synonym of Kyphosus elegans, most of the iNat content (observations and IDs) of Kyphosus sandwicensis should actually be ID'd as Kyphosus sectatrix as explained in the flag by @kendallclements. So while this swap will replace ID's of Kyphosus sandwicensis with Kyphosus elegans, many are mis-ID's and should be ID'd as Kyphosus sectatrix