Actually, I am intrigued by your set of agents and how they work together. I always like to see how clever things like that work.
I wonder if the newer “Dance” feature in 7.5.x might help here. It will take apart your carefully constructed visual, but it might also enable you to see the other links/relationships more clearly.
I’ve sometimes attempted to do maps similar to the horizontally-arranged relationship map you described. Doing it automatically with an agent adds a new twist. In any case, personally I usually end up letting that kind of strict formalism fall apart because links and visual structure don’t always interact well.