What is the User Setting Plug-in? This is a plug-in for Configuration Tool*, and allows you to restrict access to some device features using PIN numbers. It can also be used to update information in the devices address and telephone book. * In order for it to operate you need to install Configuration Tool first. Why use the User Setting Plug-in? Using the copy function of this plug-in, you can copy email addresses and telephone numbers en masse to another device.