# Keys in the graphical frontends

During the graphical emulation, you can use special key combinations from the following table to change modes. By default the modifier is `Ctrl`+`Alt` (used in the table below) which can be changed with `-display` suboption `mod=` where appropriate. For example, `-display sdl, grab-mod=lshift-lctrl-lalt` changes the modifier key to `Ctrl`+`Alt`+`Shift`, while `-display sdl,grab-mod=rctrl` changes it to the right `Ctrl` key.

Multiplexer Keys
Key Sequence | Action
--- | ---
`Ctrl`+`Alt`+`f` | Toggle full screen
`Ctrl`+`Alt`+`+` | Enlarge the screen
`Ctrl`+`Alt`+`-` | Shrink the screen
`Ctrl`+`Alt`+`u` | Restore the screen’s un-scaled dimensions
`Ctrl`+`Alt`+`n` | Switch to virtual console ‘n’. Standard console mappings are: 1: Target system display 2: Monitor 3: Serial port
`Ctrl`+`Alt`+`g` | Toggle mouse and keyboard grab.

In the virtual consoles, you can use `Ctrl`+`Up`, `Ctrl`+`Down`, `Ctrl`+`PageUp` and `Ctrl`+`PageDown` to move in the back log.