I just mean that when you click the button to generate a new version of the response (or edit your own message), ChatGPT shows you the arrow buttons enabling yo

I just mean that when you click the button to generate a new version of the response (or edit your own message), ChatGPT shows you the arrow buttons enabling you to go to the previous version of it, and that works for all the messages, so you can go back up a few messages and try a different version of the conversation, without losing what you've had before.