The WaPo reports it was from an interface with a drop-down menu.
“Around 8:05 a.m., the Hawaii emergency employee initiated the internal test, according to a timeline released by the state. From a drop-down menu on a computer program, he saw two options: “Test missile alert” and “Missile alert.” He was supposed to choose the former; as much of the world now knows, he chose the latter, an initiation of a real-life missile alert.”
Rule of thumb with tech reporting is that the reporters always get the details wrong. Nothing shatters the illusion like watching a story where you know the actual facts of the case and seeing just how much they get wrong.
“Around 8:05 a.m., the Hawaii emergency employee initiated the internal test, according to a timeline released by the state. From a drop-down menu on a computer program, he saw two options: “Test missile alert” and “Missile alert.” He was supposed to choose the former; as much of the world now knows, he chose the latter, an initiation of a real-life missile alert.”
https://www.washingtonpost.com/news/post-nation/wp/2018/01/1...