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Assets/Editor/ProjectNavigation.cs

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+// ===============================================================================
+// ProjectNavigation - Navigation History for Unity Project Window
+//
+// Creator: Scove
+// Last Updated: 2026-03-05
+// Version: 1.1
+//
+// Purpose:
+// This tool provides a navigation history for the Unity Project window, allowing
+// users to quickly jump back and forward between previously visited folders.
+//
+// Key Features:
+// 1. Tracks folder selection history automatically.
+// 2. Supports Back and Forward navigation via menu items and shortcuts.
+// 3. Pings the selected folder for quick visual identification.
+//
+// How to Use:
+// 1. Place this script in an 'Editor' folder in your project.
+// 2. Use Alt + Left Arrow to navigate Back.
+// 3. Use Alt + Right Arrow to navigate Forward.
+// ===============================================================================
+
+using System.Collections.Generic;
+using UnityEditor;
+using UnityEngine;
+
+namespace Editor
+{
+    public class ProjectNavigation : EditorWindow
+    {
+        private static List<string> history = new List<string>();
+        private static int currentIndex = -1;
+        private static string lastPath = "";
+
+        // Store the current position when selecting a folder
+        [InitializeOnLoadMethod]
+        static void Init()
+        {
+            Selection.selectionChanged += OnSelectionChanged;
+        }
+
+        static void OnSelectionChanged()
+        {
+            if (Selection.activeObject != null)
+            {
+                string path = AssetDatabase.GetAssetPath(Selection.activeObject);
+                
+                // Only track if it's a valid folder and different from the last recorded path
+                if (AssetDatabase.IsValidFolder(path) && path != lastPath)
+                {
+                    // If we are in the middle of history and perform a new "direct jump",
+                    // clear the forward history (browser-style navigation)
+                    if (currentIndex < history.Count - 1)
+                    {
+                        history.RemoveRange(currentIndex + 1, history.Count - (currentIndex + 1));
+                    }
+
+                    history.Add(path);
+                    currentIndex++;
+                    lastPath = path;
+                }
+            }
+        }
+
+        // Shortcut Alt + Left Arrow (Back)
+        [MenuItem("Tools/Navigation/Back &LEFT")]
+        static void Back()
+        {
+            if (currentIndex > 0)
+            {
+                currentIndex--;
+                NavigateTo(history[currentIndex]);
+            }
+        }
+
+        // Shortcut Alt + Right Arrow (Forward)
+        [MenuItem("Tools/Navigation/Forward &RIGHT")]
+        static void Forward()
+        {
+            if (currentIndex < history.Count - 1)
+            {
+                currentIndex++;
+                NavigateTo(history[currentIndex]);
+            }
+        }
+
+        static void NavigateTo(string path)
+        {
+            lastPath = path;
+            Object obj = AssetDatabase.LoadAssetAtPath<Object>(path);
+            Selection.activeObject = obj;
+            EditorGUIUtility.PingObject(obj);
+        }
+    }
+}