Yesh 400k clicks :D
You may wondered what I did the last days... I controlled by computer just with the rotation and pitch of my head (moving+leftclicking, no keyboard testet) and got it to click buttons if the size of very few pixels ( ~ 8x8 on a 1920x1080 screen | my head is ~ 200x300 pixels on the webcam), played a bit FTB Ressourection and played with other programming projects

254776369s ago, by Antonio

tested the keyboard now, but you need pretty long because sometimes you clicked without wanting that (then use the backspace key... and again...)