Code

var node = diagram.factory.createShapeNode(10, 10, 40, 30);
node.shape = Shape.fromId("Rectangle");

var icon1 = node.addLabel();
icon1.setCornerPosition(1, 0, 0);
icon1.horizontalAlign = Alignment.Far;
icon1.verticalAlign = Alignment.Near;
icon1.imageLocation = "icon1.png";
icon1.margin = new Thickness(0, 0, 0, 0);
icon1.imageSize = new Size(10, 10);

var icon2 = node.addLabel();
icon2.setCornerPosition(2, 0, 0);
icon2.horizontalAlign = Alignment.Far;
icon2.verticalAlign = Alignment.Far;
icon2.imageLocation = "icon2.png";
icon2.margin = new Thickness(0, 0, 0, 0);
icon2.imageSize = new Size(10, 10);