What categories of disabled users will benefit from the pedals?
Persons with limited hand abilities, who can use conventional keyboard, but who might have problems holding down the Shift key, or who cannot stretch fingers or twist wrists to reach for particular Ctrl + key or Alt + key combinations. The pedals will help one-hand typists, persons who type with few fingers on each or both hands, amputees, and victims of Carpal Tunnel Syndrome.
