Как добавить идентификатор к копируемому префабу?

using UnityEngine;
 
public class MainScript : MonoBehaviour {
    
    public int CellX = 10;
    public int CellY = 10;
    public GameObject loasd;
    public float DistanceBetweenCell = 0.5f;
    public Transform StartPosition;
 
    void Start () {
        CreateTable1 ();
        CreateTable2 ();
        CreateTable3 ();
        CreateTable4 ();
    }
void CreateTable1(){
        float PositionCellX = StartPosition.position.x;
        float PositionCellY = StartPosition.position.y;
        PositionCellX += DistanceBetweenCell / 2;
        PositionCellY += DistanceBetweenCell / 2;
        for (int i = 0; i < CellX / 2; i++) {
            for (int j = 0; j < CellY / 2; j++) {
                Instantiate (loasd, new Vector2 (PositionCellX, PositionCellY), Quaternion.identity);
                PositionCellY += DistanceBetweenCell;
            }
            PositionCellX += DistanceBetweenCell;
            PositionCellY = StartPosition.position.x;
            PositionCellY += DistanceBetweenCell / 2;
        }
    }

GameObject obj = Instantiate(loasd, new Vector2 (PositionCellX, PositionCellY), Quaternion.identity);
obj.name = "Копия 1";