What about an alternative mouse/input device - there are quite a lot to choose from. I met an artist locally who paints on the computer in the conventional painting way layers on top of layers of paint using a Tracker (head mouse for want of a better description) - I used to work with children with severe disabilities and input was always the main barrier but with the OT, PT and SLP we'd come up with workable solutions for most of our clients.

The important thing is not to stop questioning.
- Albert Einstein

Indoda