Not sure what you're asking. The application can really only be achieved on a fictional level where a Jedi/Sith can focus on multiple levels of spacial awareness. 1) focusing on what they are doing physically with the saber in hand. 2) focusing mentally on what they are doing with the other saber through the Force. The concept is known as Battle Meditation, and it is not easily learned or applied.
Well, I definitely did not invent the idea of Battle Meditation, However, working with a saber and levisaber combo, to where I give the illusion of Battle Meditation, as far as I know, I'm the only person to have done this so far.
I am glad to be corrected, because right now I'm having to figure out what works and doesn't; and if I had someone to learn from, that would let me learn things so much faster.