The New Year's Day plate is the New Year's Day plate, and the New Year's Day plate is the site. It is enough to wear nine shoes, one left, three right, seven shoulders, and six eight. It will never change, not in that space.
It is difficult to answer the question "Should Yangshan be directed?" Because it is too general. It seems that you want to ask about the arrangement of flying stars in the sky. This is a bit complicated. When you find a mountain plate or a star in the palace, you have to go through a process called turning it upside down. After that, you will find 24 mountains, then you will see whether it is yang or yin, and then you will arrange the mountain plates and plates according to yang, shun and yin.
In Feng Shui, Yuan Yun refers to time, independent of any space, so now it happens to be the eighth Yuan Yun, that is, the eighth Yuan Yun. I have never heard that different spaces (such as upstairs) will have different yuan rhymes.