Ok, created a quick mock-up of what I’m thinking, which, by the way, could not the animated gif (database error)…
The idea is that nodes are 3d objects, on a 3d cube. When the dev rotates the cube, it reduces it’s opacity down to 25% (so you can see the entire node structure in all faces), and when you finish rotating, the opacity goes back to 100%. The connecting spaghetti can, of course, interconnect nodes no matter which face of the cube they are on.
You could also, instead, make the blueprint editor it’s own “level” and the nodes 3D objects which can then be linked via spline based cylinders (much like how roads and paths are created)