Look at https://forum.getkirby.com/t/howto-working-with-contextual-links-to-the-panel/1566/10, where you find such a link for Kirby 3 in the frontend code.
Look at https://forum.getkirby.com/t/howto-working-with-contextual-links-to-the-panel/1566/10, where you find such a link for Kirby 3 in the frontend code.