Add prompt navigation for long chats to the macOS desktop app

What variant of Codex are you using?

new ChatGPT Desktop App Mac OS

What feature would you like to see?

Please add the long-chat prompt navigation feature from the ChatGPT web app to the new macOS desktop app.
On the web version, a navigation control appears on the right side of long conversations and allows users to quickly jump between their previous prompts. This makes it possible to return to an earlier question and its answer without manually scrolling through the entire conversation.
The same navigation feature should be available in the macOS desktop app.

Additional information

In long conversations, users must manually scroll through the entire chat to find a previous prompt or answer.
Expected behavior:
The desktop app should provide a right-side navigation control similar to the web version. It should show the positions of the user’s prompts and allow the user to jump directly to any earlier prompt with one click.
This feature is particularly useful for long research sessions, technical discussions, coding conversations, and chats containing many separate questions. It would significantly improve navigation and bring the desktop experience closer to the web app.