Z- matrix tells the sum in all the three directions.
Can a tool be available where the distance can be individually seen in all the three directions.
Yes, I felt the same way some time ago, and so I made my own "XYZ-Matrix", it's attached. As usual, with unofficial plugins, if it works it works, if not I can try to fix it, when I have time, maybe
After "Local install" in the AddOn Manager, restart VNL, and you find it under "Coordinate Tools" in the Builder.