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, 3);
      table.SetText(1, 0, "Hello World\nHello World\n");

      var dlg = new DlxDialog(400, 160, "Margins");
      if (dlg.IsValid())
      {
        dlg.AddStaticText(10, 33, 70, "Vertical: ");
        dlg.AddStaticText(10, 58, 70, "Horizontal: ");
        var ctrl_my = dlg.AddEditNumber(90, 30, 300, DlxApp.DIALOGEDITNUMBER_LENGTH, table.GetCellMargin(1, 0, false), 0, 30);
        var ctrl_mx = dlg.AddEditNumber(90, 55, 300, DlxApp.DIALOGEDITNUMBER_LENGTH, table.GetCellMargin(1, 0, true), 0, 30);
        dlg.AddOkButton(280, 120, 50, 25);
        dlg.AddCancelButton(340, 120, 50, 25);
        if (dlg.DoModal())
        {
          table.SetCellMargins(ctrl_mx.GetNumber(), ctrl_my.GetNumber(), 1, 0);
        }
      }
    }
  }
}