System Settings: No way in 12.12 to enter PIN Number when pairing w/Bluetooth

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http://www.linuxquestions.org – I just installed 12.12 and really like it. I've got a minor problem, because I can't pair with my Bluetooth devices. The control panel applet doesn't have any provision for entering a PIN number, and it doesn't ask for one when trying to pair-up unsuccessfully. (HowTos)