Created Scene Rename Order Editor

Author: RimuruDev

Editor.meta

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+// **************************************************************** //
+//
+//   Copyright (c) RimuruDev. All rights reserved.
+//   Contact me: 
+//          - Gmail:    rimuru.dev@gmail.com
+//          - LinkedIn: https://www.linkedin.com/in/rimuru/
+//          - GitHub:   https://github.com/RimuruDev
+//
+// **************************************************************** //
+
+using UnityEditor;
+using UnityEngine;
+using UnityEditorInternal;
+using System.Collections.Generic;
+
+namespace RimuruDev
+{
+    public sealed class SceneOrderEditor : EditorWindow
+    {
+        private ReorderableList sceneList;
+
+        // ReSharper disable once FieldCanBeMadeReadOnly.Local // Note: Don't limit List with readonly!!!!
+        private List<SceneAsset> scenes = new();
+
+        private Vector2 scrollPos;
+        private string sceneFolderPath = "Assets/Scenes";
+        private string namePattern = "Level_";
+        private bool foldout = true;
+
+        [MenuItem("RimuruDev Tools/Scene Order Editor")]
+        public static void ShowWindow() =>
+            GetWindow(typeof(SceneOrderEditor), false, "Scene Order Editor");
+
+        private void OnEnable()
+        {
+            sceneList = new ReorderableList(scenes, typeof(SceneAsset), true, true, true, true)
+            {
+                drawHeaderCallback = rect => { EditorGUI.LabelField(rect, "Drag Scenes Here:"); },
+                drawElementCallback = (rect, index, _, _) =>
+                {
+                    scenes[index] = (SceneAsset)EditorGUI.ObjectField(
+                        position: new Rect(rect.x, rect.y, rect.width, EditorGUIUtility.singleLineHeight),
+                        scenes[index],
+                        typeof(SceneAsset),
+                        allowSceneObjects: false
+                    );
+                }
+            };
+        }
+
+        private void OnGUI()
+        {
+            EditorGUI.BeginChangeCheck();
+            foldout = EditorGUILayout.Foldout(foldout, "Scene Folder Path and Naming Pattern", true);
+
+            if (foldout)
+            {
+                sceneFolderPath = EditorGUILayout.TextField("Folder Path:", sceneFolderPath);
+                namePattern = EditorGUILayout.TextField("Name Pattern:", namePattern);
+
+                if (GUILayout.Button("Load Scenes From Folder"))
+                    LoadScenesFromFolder();
+            }
+
+            if (EditorGUI.EndChangeCheck())
+                LoadScenesFromFolder();
+
+            scrollPos = GUILayout.BeginScrollView(
+                scrollPos,
+                GUILayout.Width(position.width),
+                GUILayout.Height(position.height - 200));
+
+            sceneList.DoLayoutList();
+
+            GUILayout.EndScrollView();
+
+            if (GUILayout.Button("Rename and Reorder Scenes"))
+                RenameScenes();
+        }
+
+        private void LoadScenesFromFolder()
+        {
+            scenes.Clear();
+
+            var guids = AssetDatabase.FindAssets("t:Scene", new[] { sceneFolderPath });
+
+            foreach (var guid in guids)
+            {
+                var path = AssetDatabase.GUIDToAssetPath(guid);
+                var sceneAsset = AssetDatabase.LoadAssetAtPath<SceneAsset>(path);
+
+                if (sceneAsset != null)
+                    scenes.Add(sceneAsset);
+            }
+        }
+
+        private void RenameScenes()
+        {
+            for (var i = 0; i < scenes.Count; i++)
+            {
+                var path = AssetDatabase.GetAssetPath(scenes[i]);
+                var tempSceneName = $"Temp_{namePattern}{i}";
+
+                AssetDatabase.RenameAsset(path, tempSceneName);
+            }
+
+            AssetDatabase.SaveAssets();
+            AssetDatabase.Refresh();
+
+            for (var i = 0; i < scenes.Count; i++)
+            {
+                var oldPath = AssetDatabase.GetAssetPath(scenes[i]);
+                var newSceneName = $"{namePattern}{i}";
+
+                AssetDatabase.RenameAsset(oldPath, newSceneName);
+            }
+
+            AssetDatabase.SaveAssets();
+            AssetDatabase.Refresh();
+
+            Debug.Log("<color=yellow>Scenes renamed and reordered based on the list.</color>");
+        }
+    }
+}

Editor/SceneRenamerEditor.cs

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+{
+  "name": "com.rimurudev.scene-rename-order-editor",
+  "version": "1.0.0",
+  "displayName": "RimuruDev",
+  "description": "Specify the order of scenes in the hierarchy and rename in one click!",
+  "unity": "2019.1",
+  "dependencies": {},
+  "keywords": [
+    "rimurudev",
+    "rimuru-dev",
+    "abyssmoth",
+    "gamedev",
+    "unity",
+    "tool",
+    "unity-editor",
+    "utility",
+    "plugins",
+    "unity-tools"
+  ],
+  "author": {
+    "name": "RimuruDev",
+    "email": "rimuru.dev@gmail.com",
+    "url": "https://github.com/RimuruDev"
+  }
+}