Wiring Diagrams missing visual element for create and mcopy.

[jpfairbanks]

When you make wiring diagrams that use mcopy or create, you don't get any visual indication of that happening in graphviz diagram. Is this a limitation of GraphViz, or am I doing something wrong?

[epatters]

You are not doing anything wrong. It is a limitation of the Graphviz exporter, as currently implemented.

Currently, copies are drawn as multiple wires from a single port and deletions are drawn as no wires at all, mirroring the representation in the underlying data structure. To get the black circles typically used in string diagrams, we would need to explicitly add extra nodes to the Graphviz export. This would be a nice option to have and would harmonize the styles of the Graphviz and TikZ exports. I'll add it to the list.