Ctrl + M: Enter Mark mode (allows you to select text with mouse). Once Mark mode is enabled, you can use the arrow keys to move the cursor around. Shift + Up or Down: Move cursor up or down one line ...
Eight of the top 10 function keys are included, and from the perspective of users who are using shortcut keys all the time, 'F1 is help, F3 is search, F2 is rename, F4 is combined with Alt and ...