That too vague for us to give you a detailed answer.
The basic principle is you bring power to each switch box and then you run cable from the switch to the lights for that switch. Some of the cables between the lights might able to be reused. But some of them for sure need to be removed so the light are separated into the groups you need.
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!