I have produced a diagram with nodes (i.e. shapes) and connectors. So far all is perfect. The problem I have is that I cannot figure out how to make the “No Symbol” (the shape that is a circle with a line between it) s…...Diagram diagram = new Diagram("path/to/your/diagram.vsdx"); // Access...modified diagram diagram.save("path/to/your/modified_diagram.vsdx"...