In short: Not possible.
In long: The hardcode is just that, hard code. It’s written in C(something) which means it can’t be directly interpreted by your computer. It has to be compiled into binary before it can be run. If you made all the hardcode accessible in the game the download would be enormous, and you would have to spend a few hours compiling it every time you wanted to play it.
It is possible to move some things from hardcode to JSON like I recently did with climate controlled clothing, but there’s a limit to how much of that can be done, and too much of it would balloon the game’s code something shocking.
