// Adds a new platform group to the set of platforms.
public PlatformGroup AddPlatformGroup(string displayName, int sortOrder)
{
PlatformGroup group = PlatformGroup.Create(displayName, Legacy.Platform.None);
group.DisplaySortOrder = sortOrder;
RuntimeSettings.AddPlatform(group);
AssetDatabase.AddObjectToAsset(group, RuntimeSettings);
RuntimeSettings.LinkPlatform(group);
return(group);
}