MacOS Mac keyboard
Modifier order: fn, control, option, command, space, command, option, arrows

fn+ArrowUp: nothing
fn+ArrowRight: nothing
fn+ArrowDown: nothing
fn+ArrowLeft: nothing
fn+Backspace: delete

control+ArrowUp: Mission Control
control+ArrowRight: Right one Space
control+ArrowDown: Application Windows (Show all windows of an application)
control+ArrowLeft: Left one Space

command+ArrowUp: Beginning of document
command+ArrowRight: End
command+ArrowDown: End of document
command+ArrowLeft: Home
command+shift+ArrowUp: Select to beginning of document
command+shift+ArrowRight: Select to End
command+shift+ArrowDown: Select to End of document
command+shift+ArrowLeft: Select to Home
command+space: Spotlight

option+ArrowUp: normal arrow up
option+ArrowRight: word right
option+ArrowLeft: word left
option+ArrowDown: normal arrow down
option+shift+ArrowRight: select word right
option+shift+ArrowLeft: select word left
option+backspace: backspace word
option+fn+backspace: delete word

(TextEdit)
	command+hyphen: Zoom out
	command+shift+hyphen (command+underscore): Zoom out
	command+equals: Zoom in
	command+shift+equals (command+plus): Zoom in
	command+z: undo
	command+y: nothing