What is the maximum number of layers of compass used by Feng Shui master?

According to the sects learned by each Feng Shui master, the compass knows how to use different layers. However, many Feng Shui masters have the same feature. I know I can't use it, so I try to get 33 or 36 floors. Why? That's used to scare people. Many people don't know how to use a compass at all, so they go out to wander. Normal feng shui masters can use 8 floors, which is very comprehensive.