I'm a real beginner with the raspberry pi. I was getting it all up and running tonight and then realised I didn't have an F12 key on my keyboard. I've downloaded the keymap module into into !Boot.Resources.!System.350.Modules .
However, I don't understand the next step. Apparently I should add an obey file to load it in !Boot.Choices.Boot.PreDesk containing (for example):
keymap 2 12
keymap 10 15
to map F2 to represent F12 and F10 to represent the Break key.
What does 'add an obey file' mean? how do I do that?