Of course, the downstairs will be affected, which is related to personal tolerance.
If it's noisy, either move or solve the problem, and Feng Shui can't handle it.
There is no such function. If you use magic, it's a bit immoral to use it like this, and it won't teach you.
Then we can only think of other ways, such as telling the police to disturb the people, or using the underworld method, and they will do so.
There are many ways to deal with such immoral people. There has been a saying since ancient times that a scholar meets a soldier.