Asus laptops

General

Switch to "Power4gear Hybrid" mode

`Fn` + `Space`

All hotkeys for Asus laptops

General Toggle touch panel	`Fn` + `F9`
General Mute	`Fn` + `F10`
General Adjust volume	`Fn` + `F11`
General Adjust volume	`Fn` + `F12`
General Monitor brightness/on & off /switch	`Fn` + `F5`
General Monitor brightness/on & off /switch	`Fn` + `F6`
General Monitor brightness/on & off /switch	`Fn` + `F7`
General Monitor brightness/on & off /switch	`Fn` + `F8`
General Switch to "Power4gear Hybrid" mode	`Fn` + `Space`
General Switch to "ASUS Splendid" mode	`Fn` + `C`
General Toggle Wi-fi	`Fn` + `F2`

Similar combinations for other applications

Zagg Slim Cover

Toggle between international keyboards (when activated from Surface's settings)

General

`Fn` + `Space`