Sad to hear that the Northern Grid web site has now gone offline and with it SENSwitcher, the program for children with complex needs that I designed almost 20 years ago. When we first made SENSwitcher, we also created a version which will run offline.
UPDATE: I have created version which should now run in your browser as before. Don’t forget to press F11 to maximise the window when the activity loads.
UPDATE April 18: Moved SENSwitcher to new web server. Please use the link below and update your bookmarks.
Hope this helps.