Enable volume keys:
Add this line to /etc/rc.local:
cp /sys/devices/platform/thinkpad_acpi/hotkey_all_mask /sys/devices/platform/thinkpad_acpi/hotkey_mask
Install EPEL Repository:
yum install epel-release
Install ELRepo:
http://elrepo.org/
rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm
Gnome Tweaks:
Disable Hot Corner:
gconftool-2 --direct --config-source=xml:readwrite:/etc/gconf/gconf.xml.defaults --type string --set /apps/compiz/plugins/scale/allscreens/options/initiate_edge "Disabled"
Open Windows Centered:
gconftool-2 --direct --config-source=xml:readwrite:/etc/gconf/gconf.xml.defaults --type integer --set /apps/compiz/plugins/place/screen0/options/mode 1