Show and Hide 3D Objects Array by Clicking Button Over and Over

Hi everyone, This is my first time to ask in this forum. Currently, I'm still learning C# on Unity and I encounter a problem.

In my project, there are several GameObjects which are 3D models. I want to have them show only one by one just by clicking a button. (i.e. first click to show cube A, second click to show cube B, etc) and hide the rest of objects.

My scenario is to add those GameObjects as arraylist and use loop to show/hide them automatically. But, I stuck. Here's my current code:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class objectChanger : MonoBehaviour {
 
     public ArrayList arrayCube = new ArrayList();
     public int totalCube;
     // Use this for initialization
     void Start () {
         for (int i = 0; i < totalCube; i++)
         {
             arrayCube.Add(GameObject.FindGameObjectWithTag("ArrayCube"));
         }
     }
     
     // Update is called once per frame
     void Update () {
         if (Input.GetKeyDown(KeyCode.Z))
         {
             // show
             for (int i = 0; i < totalCube; i++)
             {
                 arrayCube[i].GetComponent<Renderer>().enabled = true;
                 arrayCube[i + 1].GetComponent<Renderer>().enabled = false;
             }
         }
     }
 }

Anyone here can guide me here? Thanks before :)