How do I select from the children of a class from the GUI?

I want to be able to select from the children of a class in the GUI. Like so: ![alt text][1][1]: /storage/temp/14876-selectability.png The little option boxes appear when it is a child of MonoBehavior, however they are useless because it won't let me select to use AbiliyEffect or its children. Which I want to select its children, but when it is independent (a base class) it doesn't show any selection boxes at all. Code:

     using UnityEngine;
     using System.Collections;
     public class AbilityEffect:MonoBehaviour
     {
     
         public void Activate()
         {
         }
     }


     public class AbilityInv {
         [SerializeField]
         public List<Ability> AbilityList;
         public Ability[] EquippedAbilities;
         [SerializeField]
         public List<Ability> OwnedAbilities;
         void Start()
         {
             EquippedAbilities = new Ability[3]{AbilityList[0],AbilityList[1],AbilityList[2]};
             OwnedAbilities = AbilityList;
         }
     }
     [System.Serializable]
     public class Ability
     {
         public string AbilityName;
         public AbilityEffect abilityEffect; 
     }