When Brain drafts content like emails, proposals, or documents, I'd love the ability to edit the output directly in an inline editable text block, similar to how ChatGPT's canvas works. Right now, the only options are to copy the text out, make changes elsewhere, and paste it back for re-proofing. An editable block would let me make quick corrections, add thoughts, or tweak wording right in the conversation, then ask Brain to re-proof or refine from there.

This would be a huge workflow improvement for anyone using Brain for writing-heavy work: drafting client emails, proposals, contracts, follow-ups, etc. Keeping the editing loop inside the chat means fewer context switches and faster iteration.