how to set zoom functonality in Trusty?

[Milton]

Hi Attila,
The magnifier in Gnome-shell is working. I took a look in the 
compizconfig-setting-manager and I noticed the short cut keys for to 
increase and decrease the magnification with Shift_Super_button4 and 
Shift_Super_button5. Do you know what button4 and button5 are? Thanks in 
advance.
Milton

op 27-04-14 12:55, Hammer Attila schreef:
> I forgot to wrote the magnifier support related check box possible
> awailable only if you using GNOME Shell.
> For example if you installing gnome-session-flashback package and in
> Lightdm selecting the gnome flashback session, in GNOME Control Center
> Universal Access preference pane the magnifier related checkbox not
> available too.
>
> Attila
>