So, you think you're the one? You wanna be ? You gotta show us ya moves first. Show us a matrix jump? What you need a memory jog? ok. First, punch in any indiscriminate direction and then hold block in the opposite direction. Release your guard, and begin pressing Foward + Jump in the direction you are facing. If you Are "THE ONE" You should realize there is no spoon. Experiment with this until you find out how to jump in any direction at will.
The best use of matrix is after you get knocked back by a panic you can matrix away from them and nanmu back into them. Most players won't react correctly to this.
You don't need to punch. You can also jump at a direction then do the same other steps that you've provided. Like whoever stated above, you can also diagonal it.
You can do a combo then matrix, jump then matrix, use your exo then matrix, block then matrix, anything.