I would the ability to teach Evidence and/or the AI within the sessions so it remembers it for all new sessions. A bit like in ChatGPT Personalization, "custom instructions" or "more about you". As a small example, I use scores in my reports, and when I asked to generate text, it always suggests "superior average" for "high average". But in my field, these are two very distinct categories, so I have to manually change them for every output.