PropertyDrawer for list. Subclass item fields not showing. Help needed!

@Bunny83 Thanks for your answer. Though it doesn't quite answer my question, but I don't think I made myself clear enough, so I'll try again. I will try to show you the behavior I want and what I am currently getting from a simple example.

TLDR can be found at the bottom.

Let's say we have a script QAction (The Q doesn't stand for anything, it's just there to not interfere with my other scripts).

 [System.Serializable]
 public class QAction
 {
         [HideInInspector]
         public string actionName = "Empty Action";
         public string privateName = "";
 
         public virtual void Act()
         {
             Debug.Log("(" + actionName + ") Somebody called me!");
         }
 }

Then we have two subclasses of QAction. QWalk and QJump.

 [System.Serializable]
 public class QWalk : QAction
 {
     public float speed = 10f;
     public float duration = 15f;
 
     public QWalk()
     {
         actionName = "Walk";
     }
 
     public override void Act()
     {
         Debug.Log("(" + actionName + ") is walking!");
     }
 }

 [System.Serializable]
 public class QJump : QAction
 {
     public float jumpHeight = 5f;
     public float airTime = 2f;
 
     public QJump()
     {
         actionName = "Jump";
     }

     public override void Act()
     {
         Debug.Log("(" + actionName + ") Jumped!");
     }
 }

Now let's say I want a property drawer for QWalk (To keep this simple I'll just add some extra space below the property).

 [CustomPropertyDrawer(typeof(QWalk))]
 public class QWalkDrawer : PropertyDrawer
 {
     public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
     {
         EditorGUI.PropertyField(position, property, includeChildren: true);
     }
 
     public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
     {
         return EditorGUIUtility.singleLineHeight * 7f;
     }
 }

Everything works as intended, I can see my property and there is some extra space below it (see picture below). Now let's say I want to make a nice propertydrawer for a list of actions, so I create a script for the QActionList and a QActionListDrawer.

 [System.Serializable]
 public class QActionList
 {
     public QAction[] actionList = new QAction[3] { new QWalk(), new QJump(), new QAction() };
 }

 [CustomPropertyDrawer(typeof(QActionList))]
 public class QActionListDrawer : PropertyDrawer
 {
     SerializedProperty list;
     public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
     {
         list = property.FindPropertyRelative("actionList");
         EditorGUI.PropertyField(position, list, includeChildren: true);
     }
 
     public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
     {
         return EditorGUIUtility.singleLineHeight * 10f;
     }
 }
 

Let's also create a simple container where we can view how the different drawers look.

 public class QTestContainer : MonoBehaviour
 {
     public QJump jumpAction;
     public QWalk walkAction;
     public QActionList actionList;
 }

But when I view the script in the inspector I get the following...

We can see that the two first elements (Jump Action and Walk Action) are being drawn correctly, but in the list both the Jump and Walk actions are missing fields. Thus I cannot access the values of Walk and Jump because (I suspect) the array only draws the fields inherited from QAction. How can I fix this (or work around it) so that I easily can edit the different actions when inside an array or list?

TLDR: For some reason when drawing the actions using a list, Unity only draws the fields of the base class QAction instead of drawing them as in the picture above "Jump Action" and "Walk Action" which is the way I want them to be displayed inside of the array "Action List".