Hide properties by enums in array elements?

Hello.
How hide some properties of array elements by enum values in this elements?

Have main script:

Code (CSharp):

1. using System;
2. using System.Collections.Generic;
3. using System.Linq;
4. using UnityEngine;
5.  
6. [Serializable]
7. public partial class Quest : MonoBehaviour
8. {
9.     public List<Task> Tasks = new List<Task>();
10. }

Script of Task:

Code (CSharp):

1. using System;
2. using UnityEngine;
3.  
4. [Serializable]
5. public class Task
6. {
7.     public enum taskType { Travel, Travel2 };
8.     public taskType TaskType;
9.  
10.     [Serializable]
11.     public class TravelTask
12.     {
13.         public enum type { To, ForTime, ToForTime }
14.         public type Type = type.To;
15.         public bool one = false;
16.         public Vector3 Point = new Vector3(0, 0, 0);
17.         public float AreaRadius = 10;
18.         // Need show when Type == type.ForTime
19.         public float ForTime = 0;
20.     }
21.     // Need show when TaskType == taskType.Travel
22.     public TravelTask Travel;
23. }

How i can hide properties of Task and Task.Travel by their inner enums?
Custom Property Drawers dont work with inner properties of array elements((

 

Write a property drawer for the TravelTask and Task classes.

 

I need an example for this.
All property drawers that I saw before - was not tied to any class.

 

You saw wrong property drawers it seems. Here you go https://docs.unity3d.com/Manual/editor-PropertyDrawers.html