I am trying to help a blind friend use Adriane Knoppix. He finds it mostly intuitive, but would like to customise some features, e. g. use joe text editor instead of nano, and lynx instead of elinks browser. Can this be done without remastering the USB drive?
I have searched on Knoppix.net and Google without success. Could somebody tell me where to look for configuring and customising Adriane Knoppix. Your help will be much appreciated.

Roderick