It's a key on your keyboard. The Modifier + Click combo action to recursive expand is a feature from Mac OS that they've replicated here. Though I think Mac OS

It's a key on your keyboard. The Modifier + Click combo action to recursive expand is a feature from Mac OS that they've replicated here. Though I think Mac OS uses Option + Click not Meta. https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/metaKey https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEve... https://www.google.com/search?q=meta+key https://www.google.com/search?q=meta+key