The neighbourhood feature is one of my favourite features and honestly sets yEd apart from any of the other graph editors I've tried.
This feature would be so much better if it allowed for zooming in/out along with horizontal and vertical scroll bars, similar to how the main navigation window works, and if it could use the real-estate of the window better that would make it even better.
Here is a screenshot of an important node in my graph, but there are so many child nodes that the text doesn't even render.
