I am working on a Human Factors project at the moment and we have created a Work Domain Analysis Abstraction Hierarchy (google image supplied for reference). We have done this using a really finnicky piece of software that has stopped working, so I have recreated it using Visio. It creates a much better image quality and it is generally used for publications.
However, a key part of this system model is its ability to highlight nodes associated through its connectors. I cannot seems to find a way to do this. Would anybody have a way? Essentially I would like to select a node and automatically highlight the nodes immediately connected to it.