diff --git a/Alchemy/Assets/Alchemy/Editor/Elements/GenericField.cs b/Alchemy/Assets/Alchemy/Editor/Elements/GenericField.cs
index 3b551d3..0c69d5c 100644
--- a/Alchemy/Assets/Alchemy/Editor/Elements/GenericField.cs
+++ b/Alchemy/Assets/Alchemy/Editor/Elements/GenericField.cs
@@ -100,9 +100,25 @@ namespace Alchemy.Editor.Elements
             {
                 AddField(new IntegerField(label), (int)obj);
             }
+            
             else if (type == typeof(uint))
             {
+#if UNITY_2022_1_OR_NEWER
                 AddField(new UnsignedIntegerField(label), (uint)obj);
+#else
+                var value = (uint)obj;
+                var control = new LongField(label);
+                control.value = value;
+                control.RegisterValueChangedCallback(x =>
+                {
+                    var newValue = (uint)Math.Clamp(control.value, 0, uint.MaxValue);    
+                    OnValueChanged?.Invoke(newValue);
+                    control.value = newValue;
+                });
+                
+                Add(control);
+#endif
+                
             }
             else if (type == typeof(long))
             {
@@ -110,7 +126,21 @@ namespace Alchemy.Editor.Elements
             }
             else if (type == typeof(ulong))
             {
+#if UNITY_2022_1_OR_NEWER
                 AddField(new UnsignedLongField(label), (ulong)obj);
+#else
+                var value = (ulong)obj;
+                var control = new LongField(label);
+                control.value = (long)value;
+                control.RegisterValueChangedCallback(x =>
+                {
+                    var newValue = (long)Math.Clamp(control.value, 0, long.MaxValue); 
+                    OnValueChanged?.Invoke(newValue);
+                    control.value = newValue;
+                });
+                
+                Add(control);
+#endif
             }
             else if (type == typeof(float))
             {
diff --git a/Alchemy/Assets/Alchemy/Editor/Internal/GUIHelper.cs b/Alchemy/Assets/Alchemy/Editor/Internal/GUIHelper.cs
index 70c9649..ba935f3 100644
--- a/Alchemy/Assets/Alchemy/Editor/Internal/GUIHelper.cs
+++ b/Alchemy/Assets/Alchemy/Editor/Internal/GUIHelper.cs
@@ -82,26 +82,50 @@ namespace Alchemy.Editor
                     if (events.OnItemsRemoved == null) return;
                     ReflectionHelper.Invoke(target, events.OnItemsRemoved, new object[] { indices });
                 };
+#if UNITY_2022_1_OR_NEWER
                 listView.itemsChosen += items =>
                 {
                     if (events.OnItemsChosen == null) return;
                     ReflectionHelper.Invoke(target, events.OnItemsChosen, new object[] { items });
                 };
+#else 
+                 listView.onItemsChosen += items =>
+                {
+                    if (events.OnItemsChosen == null) return;
+                    ReflectionHelper.Invoke(target, events.OnItemsChosen, new object[] { items });
+                };
+#endif
+                
                 listView.itemIndexChanged += (before, after) =>
                 {
                     if (events.OnItemIndexChanged == null) return;
                     ReflectionHelper.Invoke(target, events.OnItemIndexChanged, new object[] { before, after });
                 };
+#if UNITY_2022_1_OR_NEWER
                 listView.selectionChanged += items =>
                 {
                     if (events.OnSelectionChanged == null) return;
                     ReflectionHelper.Invoke(target, events.OnSelectionChanged, new object[] { items });
                 };
+
                 listView.selectedIndicesChanged += indices =>
                 {
                     if (events.OnSelectedIndicesChanged== null) return;
                     ReflectionHelper.Invoke(target, events.OnSelectedIndicesChanged, new object[] { indices });
                 };
+#else
+                listView.onSelectionChange += items =>
+                {
+                    if (events.OnSelectionChanged == null) return;
+                    ReflectionHelper.Invoke(target, events.OnSelectionChanged, new object[] { items });
+                };
+
+                listView.onSelectedIndicesChange += indices =>
+                {
+                    if (events.OnSelectedIndicesChanged== null) return;
+                    ReflectionHelper.Invoke(target, events.OnSelectedIndicesChanged, new object[] { indices });
+                };
+#endif
                 listView.itemsSourceChanged += () =>
                 {
                     if (events.OnItemsSourceChanged == null) return;
diff --git a/Alchemy/Assets/Alchemy/Runtime/Inspector/InspectorAttributes.cs b/Alchemy/Assets/Alchemy/Runtime/Inspector/InspectorAttributes.cs
index 0479176..4a025a5 100644
--- a/Alchemy/Assets/Alchemy/Runtime/Inspector/InspectorAttributes.cs
+++ b/Alchemy/Assets/Alchemy/Runtime/Inspector/InspectorAttributes.cs
@@ -229,5 +229,6 @@ namespace Alchemy.Inspector
         public string OnItemsSourceChanged { get; set; }
         public string OnSelectionChanged { get; set; }
         public string OnSelectedIndicesChanged { get; set; }
+        
     }
 }
\ No newline at end of file
diff --git a/Alchemy/Assets/Tests/OnListViewChangedTest.cs b/Alchemy/Assets/Tests/OnListViewChangedTest.cs
index 249aad0..5e2599e 100644
--- a/Alchemy/Assets/Tests/OnListViewChangedTest.cs
+++ b/Alchemy/Assets/Tests/OnListViewChangedTest.cs
@@ -8,6 +8,8 @@ public class OnListViewChangedTest : MonoBehaviour
         OnItemChanged = nameof(OnItemChanged),
         OnItemsAdded = nameof(OnItemsAdded),
         OnItemsRemoved = nameof(OnItemsRemoved),
+        OnItemsChosen = nameof(OnItemChosen),
+        OnSelectionChanged = nameof(OnSelectionChanged),
         OnSelectedIndicesChanged = nameof(OnSelectedIndicesChanged),
         OnItemIndexChanged = nameof(OnItemIndexChanged))
     ]
@@ -27,12 +29,22 @@ public class OnListViewChangedTest : MonoBehaviour
     {
         Debug.Log($"Removed: [{string.Join(',', indices)}]");
     }
-
+    
+    void OnItemChosen(IEnumerable<object> items)
+    {
+        Debug.Log($"Chosen: [{string.Join(',', items)}]");
+    }
+    
+    void OnSelectionChanged(IEnumerable<object> items)
+    {
+        Debug.Log($"Selection Changed: [{string.Join(',', items)}]");
+    }
+    
     void OnSelectedIndicesChanged(IEnumerable<int> indices)
     {
         Debug.Log($"Selected: [{string.Join(',', indices)}]");
     }
-
+    
     void OnItemIndexChanged(int before, int after)
     {
         Debug.Log($"Index Changed: [{before} -> {after}]");
diff --git a/Alchemy/Assets/Tests/UnsignedTest.cs b/Alchemy/Assets/Tests/UnsignedTest.cs
new file mode 100644
index 0000000..5aa55e8
--- /dev/null
+++ b/Alchemy/Assets/Tests/UnsignedTest.cs
@@ -0,0 +1,19 @@
+using Alchemy.Inspector;
+using UnityEngine;
+
+namespace Tests
+{
+    public class UnsignedTest : MonoBehaviour
+    {
+        [Button]
+        public void TestUint(uint value)
+        {
+            Debug.Log("TestLong");
+        }
+        [Button]
+        public void TestULong(ulong value)
+        {
+            Debug.Log("TestULong");
+        }
+    }
+}
\ No newline at end of file
diff --git a/Alchemy/Assets/Tests/UnsignedTest.cs.meta b/Alchemy/Assets/Tests/UnsignedTest.cs.meta
new file mode 100644
index 0000000..da6f358
--- /dev/null
+++ b/Alchemy/Assets/Tests/UnsignedTest.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 8b9202060cef47b8a30b53a9f413fbcb
+timeCreated: 1708998502
\ No newline at end of file