When there is a lot of text in a scrollable popover (e.g. many failing tests), it is super hard to select it: - selecting via clicking the mouse and moving it outside the popover for auto-scroll doesn't work, because the popover gets dismissed; - Cmd+A doesn't work, because it also selects text outside the popover; - even keyboard selection doesn't work, because it triggers a document scroll too. Copying all failing tests seems like a valid use cases to support.