Being focused is something we all can do. Focus occurs when you are aware of your actions. These actions may be ones which you have done before or something completly new. The greater your sense of self the greater your likelihood is to maintain focus.
If you wish to develop focus you must spend time practing things which seem like rituals (from an outsider’s perception). You also must avoid habbits at all costs. Habbits are posion for your presence of mind. Being focused is not practiced while acting unconsciously during habitual behaviours.
We may be able to analyze multiple sensations at once, but our choice occurs in focusing on a single descion. It is the accumulation of rehearsal and repetition that allows us to focus with greater strength and sensitivity.
The goal is to simplify your way of thinking by focusing on a single point, then eventualy a concept and then system.