diff --git a/Source/Engine/AI/BehaviorKnowledgeSelector.h b/Source/Engine/AI/BehaviorKnowledgeSelector.h
index 976711282..092d42b1c 100644
--- a/Source/Engine/AI/BehaviorKnowledgeSelector.h
+++ b/Source/Engine/AI/BehaviorKnowledgeSelector.h
@@ -91,6 +91,13 @@ API_STRUCT(InBuild, Template, MarshalAs=StringAnsi) struct FLAXENGINE_API Behavi
         return false;
     }
 
+    BehaviorKnowledgeSelector() = default;
+
+    BehaviorKnowledgeSelector(const StringAnsi& other)
+    {
+        Path = other;
+    }
+
     BehaviorKnowledgeSelector& operator=(const StringAnsiView& other) noexcept
     {
         Path = other;
diff --git a/Source/Engine/Content/JsonAssetReference.cs b/Source/Engine/Content/JsonAssetReference.cs
index 7c8a8902f..766645161 100644
--- a/Source/Engine/Content/JsonAssetReference.cs
+++ b/Source/Engine/Content/JsonAssetReference.cs
@@ -12,7 +12,7 @@ namespace FlaxEngine
 #if FLAX_EDITOR
     [CustomEditor(typeof(FlaxEditor.CustomEditors.Editors.AssetRefEditor))]
 #endif
-    public struct JsonAssetReference<T>
+    public struct JsonAssetReference<T> : IComparable, IComparable<JsonAssetReference<T>>, IEquatable<JsonAssetReference<T>>
     {
         /// <summary>
         /// Gets or sets the referenced asset.
@@ -94,16 +94,40 @@ namespace FlaxEngine
             return left.Asset != right.Asset;
         }
 
+        /// <inheritdoc />
+        public bool Equals(JsonAssetReference<T> other)
+        {
+            return Asset == other.Asset;
+        }
+
+        /// <inheritdoc />
+        public int CompareTo(JsonAssetReference<T> other)
+        {
+            return Object.GetUnmanagedPtr(Asset).CompareTo(Object.GetUnmanagedPtr(other.Asset));
+        }
+
+        /// <inheritdoc />
+        public override bool Equals(object obj)
+        {
+            return obj is JsonAssetReference<T> other && Asset == other.Asset;
+        }
+
         /// <inheritdoc />
         public override string ToString()
         {
             return Asset?.ToString();
         }
 
+        /// <inheritdoc />
+        public int CompareTo(object obj)
+        {
+            return obj is JsonAssetReference<T> other ? CompareTo(other) : 1;
+        }
+
         /// <inheritdoc />
         public override int GetHashCode()
         {
-            return Asset?.GetHashCode() ?? 0;
+            return (Asset != null ? Asset.GetHashCode() : 0);
         }
     }
 }
diff --git a/Source/Engine/Content/JsonAssetReference.h b/Source/Engine/Content/JsonAssetReference.h
index d84c44926..965a0aaa0 100644
--- a/Source/Engine/Content/JsonAssetReference.h
+++ b/Source/Engine/Content/JsonAssetReference.h
@@ -12,6 +12,13 @@
 template<typename T>
 API_STRUCT(NoDefault, Template, MarshalAs=JsonAsset*) struct JsonAssetReference : AssetReference<JsonAsset>
 {
+    JsonAssetReference() = default;
+
+    JsonAssetReference(JsonAsset* asset)
+    {
+        OnSet(asset);
+    }
+
     /// <summary>
     /// Gets the deserialized native object instance of the given type. Returns null if asset is not loaded or loaded object has different type.
     /// </summary>
diff --git a/Source/Engine/Engine/NativeInterop.cs b/Source/Engine/Engine/NativeInterop.cs
index 026f54fec..7dfd52d22 100644
--- a/Source/Engine/Engine/NativeInterop.cs
+++ b/Source/Engine/Engine/NativeInterop.cs
@@ -249,7 +249,7 @@ namespace FlaxEngine.Interop
         /// <param name="src">The input array.</param>
         /// <param name="convertFunc">Converter callback.</param>
         /// <returns>The output array.</returns>
-        public static TDst[] ConvertArray<TSrc, TDst>(Span<TSrc> src, Func<TSrc, TDst> convertFunc)
+        public static TDst[] ConvertArray<TSrc, TDst>(this Span<TSrc> src, Func<TSrc, TDst> convertFunc)
         {
             TDst[] dst = new TDst[src.Length];
             for (int i = 0; i < src.Length; i++)
@@ -265,7 +265,7 @@ namespace FlaxEngine.Interop
         /// <param name="src">The input array.</param>
         /// <param name="convertFunc">Converter callback.</param>
         /// <returns>The output array.</returns>
-        public static TDst[] ConvertArray<TSrc, TDst>(TSrc[] src, Func<TSrc, TDst> convertFunc)
+        public static TDst[] ConvertArray<TSrc, TDst>(this TSrc[] src, Func<TSrc, TDst> convertFunc)
         {
             TDst[] dst = new TDst[src.Length];
             for (int i = 0; i < src.Length; i++)