Since the plugin passes its input to Graphviz itself, the plugin accepts all syntax and options.
RefNotes
This is some text to which I would like to add a citation[1]. Since it has a label, I can reference it again here[2]. Valid labels are of the form /[a-zA-Z][a-zA-Z0-9_]*/.
Include
We can include the text of other pages
Switch Panel
[1],
[2]
And these are the contents of said citation.