I'd seen that before just forgot about. I was thinking about that in combination with one of the eye tracking systems. At this point I'm still typing but I have a tendency to try and plan ahead My understanding is that the eye tracking systems use a dwell time to click which I think would irritate me. If a cheek switch or something similar could be used in conjunction it would make things quicker. I saw what I assume is a camera on your laptop. Is that an eye tracking system?