Request for Advice on Pattern PWPs Location Modification

[Luricky0]

“No. All pattern PWPs (signs, standess, etc.) behave exactly the same. The building list has information about X,Y info for every building. Additional info like the pattern used is stored somewhere else (it should be easy to find it though). That info is probably tied to the PWP coordinates. That's why moving them resets them to the first pattern of custom PWPs.“

Hi, based on the suggestion in link, I located a section in the save file that seems to contain information related to the pattern data of the pattern PWPs, a few blocks of 0x878 bytes starting at 0x4bf70. Additionally, I found what appears to be their X,Y info, locating in the last 8 bytes of each block of 0x878 bytes. I attempted to modify this X,Y data to fit the edited locations, but unfortunately, this did not work.

Could you please give me more advice on how to implement this feature of moving custom-design signs?