I mentioned this in another thread. You can have the output be a dot file. Which you can then edit and send back with a flag to not redo the layout.
That's a wonderful tip, thank you!
Hope it helps! There used to be a program called dotty, looks like it was basically abandoned, though. :(
it’s there in the graphviz github repo.
But it is only x11, right? Not sure how well it is supported on the platforms you can run it on. And I don't have x on my work computer.
That is a different point than "basically abandoned" :-) I do use X11 programs on Unix and MacOS (so far XQuartz works well enough). And probably Microsoft Windows though I don't use it.
Fair.
My feeling is likely impacted as much from the fact that I've never met anyone that used it.