In Studio's conversation history, you can now name chats and pin frequently used conversations.
Select "Rename" from the "⋮" menu in the history list to edit the chat name, which is saved by pressing Enter or clicking away (up to 255 characters).
Select "Pin" to fix that conversation to the top of the list, where it can be identified at a glance by the pin icon.
Names you set manually will never be overwritten by AI-generated automatic naming.