Feature Changes: "Chunks Simulation Distance"

Feature Changes: "Chunks Simulation Distance" can change the whole game on a large scale. I would like you to change the function: "Tank Simulation Distance", namely, divide it into 2 parts. 1 part: "The distance of the Chunks Simulation Horizontally", it changes: in how many chunks from the player will the world change in x-z coordinates. Part 2: "The distance of the Chunks Simulation Horizontally", it changes: in how many chunks from the player will the world change in y coordinates. These changes would have greatly changed the whole game. This would help optimize the game, and chunks. People could change the "Simulation Distance" in their own way, for example: So that the world changes occur in 10 chunks from the player Horizontally, and 2 chunks Vertically.