IList<GraphicElement> CreateGraphicElements( 
   IElementContainer elementContainer,
   IEnumerable<CIMGraphic> cimGraphics,
   IEnumerable<string> elementNames,
   bool select,
   IEnumerable<ElementInfo> elementInfos
)

//Must be on QueuedTask.Run(() => { ...

//List of Point graphics
var listGraphics = new List<CIMPointGraphic>();
var listGraphics2 = new List<CIMPointGraphic>();
//Symbol
var pointSymbol = SymbolFactory.Instance.ConstructPointSymbol(
                                    ColorFactory.Instance.BlackRGB);
//Define size of the array
int dx = 5;
int dy = 5;
MapPoint point = null;
//Create the List of graphics for the array
for (int row = 0; row <= dx; ++row)
{
  for (int col = 0; col <= dy; ++col)
  {
    //At 2.x - point = MapPointBuilder.CreateMapPoint(col, row);
    point = MapPointBuilderEx.CreateMapPoint(col, row);
    //create a CIMGraphic 
    var graphic = new CIMPointGraphic()
    {
      Symbol = pointSymbol.MakeSymbolReference(),
      Location = point
    };
    listGraphics.Add(graphic);
    //Or use GraphicFactory
    var graphic2 = GraphicFactory.Instance.CreateSimpleGraphic(
                                  point, pointSymbol) as CIMPointGraphic;
    listGraphics2.Add(graphic2);
  }
}
//Draw the array of graphics
//At 2.x - var bulkgraphics =
//              LayoutElementFactory.Instance.CreateGraphicElements(
//                                              layout, listGraphics, null);

var bulkgraphics = ElementFactory.Instance.CreateGraphicElements(
                                                   container, listGraphics);
var bulkgraphics2 = ElementFactory.Instance.CreateGraphicElements(
                                                   container, listGraphics2);