I don't have these machine. But as I can see on screenshots on the net, there is a "delete" key just above "Return", as usual on macs. There doesn't seem to be a "Suppr" key, as there isn't any on macbookpros these days (and I miss it).No, I don't search a shortcut, but a key on the keyboard to delete texte. There is no one on my keyboard.
Bertrand