Linux Desktop Environment

Circular Scrolling
To install program

yum install gsynaptics
or
yum install gpointing-device-settings

Key Remap
To query keycode

xev

To remap normal key

xmodmap -e 'keycode 102 = space'

To remap special key such as shift

xmodmap -e 'add shift = Shift_R'
xmodmap -e 'keycode 97 = Shift_R'

If you  have Panasonic laptop with Japanese keyboard layout, you may need the following script:

xmodmap -e 'keycode 102 = space'
xmodmap -e 'keycode 100 = space'
xmodmap -e 'keycode 101 = Alt_R'
xmodmap -e 'add mod1 = Alt_R'
xmodmap -e 'keycode 97 = Shift_R NoSymbol Shift_R'
xmodmap -e 'add shift = Shift_R'
xmodmap -e 'keycode 132 = BackSpace'