You can do stairs and elevators in feng shui.
The theory of anger is rooted in the Eight Palace Mirror. The author of Eight Houses Mirror essentially changed the gossip of the Book of Changes into his own geomantic work Eight Houses Mirror, so he changed his name for fear that the interpretation process of gossip would be complicated. Eight Houses Mirror says that all houses are decided by four auspicious positions and four fierce positions. Its core essence is that there is no distinction between good and bad, each with 50 boards, half of which is good and half is evil. Inferred from Eight Houses Mirror: From 80,000 directions of 10,000 houses, there are 40,000 fierce positions. With so many powerful people, who dares to live in a cave? The reality is: 10,000 houses, in 60 years, at most 35 houses are really problematic, and 99% and 9% houses are safe and auspicious, which is not quite the same as that expressed in Eight Houses Mirror. Therefore, the geomantic circle has never taken Bazhai and Mingzhai seriously, just for reference.