1. q: Where is the insert key a: Apple's keyboard does not have an insert key
emulate 'ins' key by pressing Ctrl + "t"
2. q: Where is the ~ key? a: to the right of the left "shift" key
3. q: How to take a screenshot of the screen? a: press "ctrl" + 3 - to take the screenshot of the entire screen and "ctrl" + 4 - to take the screenshot of the selected screen area. Screenshots are saved on the desktop