How do I use custom HUD files/scripts?

[Ori]

Hello, I am pretty new in the community and wanted to know how to use the HUD scripts files (example: the one I want to download: https://www.mediafire.com/file/45eaq7ebozho5zv/hud.json/file). I have tried putting them in many folders like script, replacing the HUD.json with the already existing HUD.json etc. If anyone could answer, would mean a lot to me

[Aftery]

replace hud.json with hud.json

[A Former User]

replace old hud.json file to the new hud.json file, then reload