Hello, my dad has fairly advanced ALS and needs a good hands-free mouse that works will help him to use a laptop again. He can't use fingers at all but could apply pressure to something placed under the bottom of his hand (or perhaps between teeth?). We don't have anyone to assess or advise him. Is anyone else in that situation and know of a good HF mouse? He's scared of trying new tech because it's often so frustrating, but he needs to be able to use the laptop. Thank you. Sasha