How can i get SerializedProperty from UnityEvent which in List. Sorry for my Eng.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Events;
 using UnityEditor;
 using UnityEditor.SceneManagement;
 
 public class CustomEventsList : MonoBehaviour
 {
     public List<CustomEvent> events;
 
     public CustomEventsList()
     {
         events = new List<CustomEvent>();
     }
 
     public void RemoveEvent(string name)
     {
         foreach (var item in events)
         {
             if (item._name == name)
             {
                 events.Remove(item);
                 break;
             }
         }
     }
     public void AddEvent(string name)
     {
         events.Add(new CustomEvent(name));
     }
     public int IndexOfEvent(CustomEvent _event)
     {
         int index = -1;
         foreach (var item in events)
         {
             if (item == _event)
             {
                 index = events.IndexOf(item);
             }
         }
         return index;
     }
     public bool ContainsEvent(string name)
     {
         foreach (var item in events)
         {
             if (item._name == name)
             {
                 return true;
             }
         }
         return false;
     }
 }
 
 [System.Serializable]
 public class CustomEvent
 {
     [SerializeField]
     public string _name;
     [SerializeField]
     public UnityEvent _event;
 
     public CustomEvent(string _name)
     {
         this._name = _name;
         this._event = new UnityEvent();
     }
 }
 
 [CustomEditor(typeof(CustomEventsList))]
 public class CustomEventsListInspector : Editor
 {
     private CustomEventsList CEL;
     private string eventKey;
 
     private void Awake()
     {
         eventKey = "Событие";
     }
 
     private void OnEnable()
     {
         CEL = (CustomEventsList)target;
     }
 
     public override void OnInspectorGUI()
     {
         EditorGUILayout.BeginVertical("box");
         if (GUILayout.Button("Добавить событие", GUILayout.Height(30)))
         {
             if (!CEL.ContainsEvent(eventKey))
             {
                 CEL.AddEvent(eventKey);
             }
         }
         eventKey = EditorGUILayout.TextField("Имя события", eventKey);
         EditorGUILayout.EndVertical();
         if (CEL.events.Count > 0)
         {
             foreach (var item in CEL.events)
             {
                 SerializedProperty prop = ????????????;
                 EditorGUILayout.BeginVertical("box");
                 EditorGUILayout.BeginHorizontal();
                 EditorGUILayout.LabelField(item._name);
                 if (GUILayout.Button("Удалить"))
                 {
                     CEL.RemoveEvent(item._name);
                     break;
                 }
                 EditorGUILayout.EndHorizontal();
                 EditorGUILayout.PropertyField(prop);
                 EditorGUILayout.EndVertical();
             }
         }
 
         if (GUI.changed)
         {
             EditorUtility.SetDirty(CEL);
             EditorSceneManager.MarkSceneDirty(CEL.gameObject.scene);
         }
     }
 }