using UnityEngine;

public class SelectChild:MonoBehaviour
{
      public int childNumber;

      void Start()
      {
          Transform tr = GetTransformAtIndex(childNumber);
          if(tr!=null)
          {
              tr.position += Vector3.up;
          }
      }

      private Transform GetTransformAtIndex(int index)
      {
          int pos = 0;
          foreach (Transform tr in transform)
          {
              ++pos;
              if(pos==index)
              {
                  return tr;
              }
          }

          return null;
      }
}