Order of instantiated objects

I made a test script that looks like this:

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class TestScript : MonoBehaviour {

 public bool Test = true;
 public bool _Test;

 public GameObject TestObject;
 public Transform _TestObject;

 public GameObject[] TestArray;

 void Start()
 {

 }


 void Update()
 {

     if (_Test != Test)
     {
         _Test = Test;
         Debug.Log("Changed");

         TestArray = GameObject.FindGameObjectsWithTag("clone");

         foreach (GameObject Clone in TestArray)
         {
             Destroy(Clone);
             Debug.Log("Destroyed");
         }

         for (int i = 0; i < 4; i++)
         {
             Debug.Log(i);
             Instantiate(TestObject, _TestObject);
             TestObject.tag = "clone";
             TestObject.name = "Clone" + i;
         }
     }
 }

}

As you see I am instantiating an object and giving it a name for ease, but when I look in the inspector it looks like this:

And I want it to look like this:

I've tried setting the sibling index to the i variable but it gives the same result. Can someone explain to me why this is happening and tell me how I can fix it. (Also when I first start the game it doesn't instantiate anything only after I change the variable ones it does.)