None: Set the device as none if you are not using a special key for the device.
Mouse: Set mouse definition for the device. For example, for button 1, if you wish to set it as a left click button, select left click and mouse definition will be shown in “key” column:
System: | Set system function for the device. There are 4 system functions available: power off, |
| suspend, hibernate, log off and reboot. For example, for button 2 if you wish to set it as a |
| power off button, select power off and system function will be shown in “key” column. |
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