Dynamic changing type in ReorderableList

Hi all, It is possible to change the type of object in the ReorderableList? I mean, in the time when is drawing element in "DrawElementCallback", I would like change type of element. I would like to mention, that all my objects inheriting from one object. And I want to change the type dynamically in a "DrawElementCallback" method.

For example, this is my code:

 public class Quest : ScriptableObject
 {
     public enum QuestGoalType
     {
         Kill,
         Gather
     }
     
     public QuestGoalType questGoalType;
     public List<QuestGoal> questGoalls = new List<QuestGoal>();
 }
 
 public class QuestTask
 {
     public string Description;
     public int Count;
 }
 
 [Serializable]
 public class GatherTask : QuestTask
 {
     public string Target;
     public int Anount;
 }
 
 [Serializable]
 public class KillTask : QuestTask
 {
     public GameObject Targer;
     public int Amount;
     public string Name;
 }

ReorderableList is creating in the editor of Quest object. When I change the value of questGoalType and push a button, I add an appropriate object.

Maybe someone knows about a better solution? Or maybe is something better than ReorderableList?