Welcome to the community!
In reference to your other post (Add an Option to Resume the Last Chat or Start a New One Upon App Restart) I’d like to give you a bit of usage advice:
Typically, chats degrade if they become too long. The quality is generally a lot better (depending on what you’re doing, of course) if you keep your chats short and sweet. So for now, it’s very possible that OpenAI would want to inhibit that sort of usage.
That said, you can still accomplish some of these things on your browser, most easily with bookmarks. You can organize those as you like.
Is there a specific reason why you’re using the app over your browser? Or are you talking about the mobile app?