CrowdControl/Assets/FloorSetter.cs

using System.Collections;
using System.Collections.Generic;
using System.Security.Policy;
using UnityEngine;

public class FloorSetter : MonoBehaviour
{
    public List<Transform> transforms;
    public GameObject prefab;
    public GameObject CubePrefab;

    public List<Vector3> positions;

    //public void OnValidate()
    //{
    //    Instantiator();
    //}
    [ContextMenu("PositionTaker")]
    public void PositionTaker()
    {
        for (int i = 0; i < transforms.Count; i++)
        {
            positions.Add(transforms[i].localPosition);
        }
    }

    [ContextMenu("Instantiator")]
    public void Instantiator()
    {
        // for (int i = 0; i < positions.Count; i++)
        // {
        //     Transform temp=Instantiate(CubePrefab,this.transform).transform;

        //     //Transform temp = Instantiate(new GameObject(), this.transform).transform;
        //     temp.localPosition = positions[i];
        //     //Instantiate(prefab, temp);
        // }
        for (int i = 0; i < positions.Count; i++)
        {
            //Transform temp=Instantiate(CubePrefab,this.transform).transform;

            Transform temp = Instantiate(new GameObject(), this.transform).transform;
            temp.name = "Floor Position";
            temp.localPosition = positions[i];
            Instantiate(prefab, temp);
        }
    }

}