Is there a way to make all added nodes unique?

[Hoekstraa]

e.g. if I make a graph like so:

a == b
a == c
b == d
b == d

Can I then have 2, separate 'd' nodes in the resulting image? Preferrably globally, with one option, command, or whatever. Like with labels in the Dot language?

[fwolfst]

I think you have to give more code example. Of course it is possible, and you can also use labels. Maybe take a look in the examples folder, or describe your problem more in-depth. But given the issue age, its probably not relevant anymore?