Windows CE 6.0 knowhow

I need you to develop some software for me. I would like this software to be developed for Windows CE Hello. I am hoping that you can give me some advice with a device that I have. I am a wheelchair user and I have an F5 Permobil that I control with my head switch. To do that the chair has an interface system, called Magic Drive Touch (MDT) which is linked to the R-net system in the chair. This is the device I wanted to talk to you about. The MDT is running Windows CE 6.0 which is probably needed for all the grids and commands that I need to control on the chair. I can move the chair, play music, videos, send infrared codes. My question to you is if it would be possible to change some of the grids on it, like add some buttons, change others and enable some other features. I'm guessing it can all be done with programming but I have contacted Permobil and they seem to not have time and weren't very helpful. If you have read and understood this, please contact me with a sensible offer, as I am not a high earner. You would be doing a very good deed. Please let me know if this is something that would be possible and how it would be done. I can't send the device anywhere. Have a look on YouTube to see how the device works. Thank you