These skills are used by people who want to go further in their understanding of the machine and their communication with it. that you DONT know how to do this very basic control manouver worries me right back at you I am afraid.

Its like if you had a home PC. you like your pc as it came in the box and you run it EXACTLY as they tell you in the book.
this is fine but dont get annoyed when NOTHING new happens in the computer world.
It takes other, more adventurous, people to start cracking code and creating new skills.
*Miss daisy did not drive.