Calculating all point graph nodes within x nodes away

Beginner Questions
1

If I have a point graph and I want to highlight all the nodes that are say, 5 nodes away, how can I do that?
I dont care about world distance, just the number of nodes they are away.

2

Hi

This is available in the pro version as the ConstantPath.
See Example Scenes -> Path Types scene, check out ConstantPath.

3

Or actually, this will give you all nodes which have a path to them with a length less than some number.