UndoRedoShortcuts.cs

using UnityEditor;
using UnityEditor.ShortcutManagement;
using UnityEngine;

namespace Kogane.Internal
{
    internal static class UndoRedoShortcuts
    {
        [Shortcut( "Kogane/Undo Redo Shortcuts/Undo", KeyCode.Mouse3 )]
        private static void PerformUndo()
        {
            Undo.PerformUndo();
        }

        [Shortcut( "Kogane/Undo Redo Shortcuts/Redo", KeyCode.Mouse4 )]
        private static void PerformRedo()
        {
            Undo.PerformRedo();
        }
    }
}