With the web interface and the left-side uncontrolled-streaming-list of chat sessions (NOTE : OpenAI, please add some organisational tools!), you can have a session become relevant again at the top of your list. Use the “ooo” more button on your session heading/label, then “Rename” option. You can add a simple space at the end or whatever you want, and once accepted the session jumps to the top of the list. 
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