var prj = DlxApp.GetJob().GetProject("Example Sch");
if (!prj.IsValid())
  prj = DlxApp.GetJob().NewProject("Example Sch");
var doc = prj.GetDocument("Examples Sch", DlxApp.DOCTYPE_SCHEMATIC);
if (!doc.IsValid())
{
  doc = prj.NewDocument("Examples Sch", DlxApp.DOCTYPE_SCHEMATIC);
  doc.SetPageFormat("A4", false);
}
if (doc.IsValid() && doc.Activate())
{
  var page = doc.GetActivePage();
  if (page.IsValid())
  {
    var layer = page.GetLayerFromType(DlxApp.LAYERTYPE_DRAWING);
    if (layer.IsValid())
    {
      var table = layer.DrawTable(new DlxRect(50,40,160,90), 4, 4);
      table.SetText(0, 0, "Cln 0");
      table.SetText(0, 1, "Cln 1");
      table.SetText(0, 2, "Cln 2");
      table.SetText(0, 3, "Cln 3");

      table.InsertColumn(4);
    }
  }
}