Export whole chat thread in Markdown

I would like a single button in the chat thread view that allows me to copy the entire thing (prompts and answers, not grounding details or reasoning chains) in Markdown format.

Copying individual messages into a local document has been very tedious, and exporting in JSON from the settings pane is not very ergonomic for what I’m trying to do.

There is a Copy entire thread ticket that is marked as completed, but I don’t see any way to do this in the UI.