public CatalogLayerCreationParams( 
   CatalogDataset catalogDS
)

{
    //Get the CatalogDataset of another Catalog layer
    var existingCatalogLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<CatalogLayer>().FirstOrDefault();
    if (existingCatalogLayer != null)
    {
        var catalogDataset = existingCatalogLayer.GetCatalogDataset();
        //Configure the settings for a new Catalog layer using the CatalogDataset of an existing layer
        var catalogLyrParams = new CatalogLayerCreationParams(catalogDataset);
        catalogLyrParams.Name = "NewCatalogLayerFromAnotherCatalogLayer";
        catalogLyrParams.DefinitionQuery = new DefinitionQuery("Query1", "cd_itemname = 'Asia'");
        //Note: Needs QueuedTask to run
        LayerFactory.Instance.CreateLayer<CatalogLayer>(catalogLyrParams, MapView.Active.Map);
    }
}