alternatively you could link to nodes by referencing their label? You might just also want an option to not render that label (ie have it be for the writer's benefit only).
added the concept of node ids and linking directly to them last night! now you can do something like
[custom id] hello world
child 1
child 2
(custom id)
Nice - that's a great feature. I'm working on a graph based project and have to semi regularly visualise different kinds of directed graph and your project could really come in handy!