GitHub - okkosh/FN-key-lock: A Script/Program to simulate hardware F key lock on F1-F12 keys with custom controls and visible lock notifications.
Enable or disable fn (function) or action keys mode (HP ProBook 440 G5, 450 G5, 470 G5, and HP EliteBook 830 G5, 840 G5, 850 G5) | HP® Support
![keyboard - Does the Fn Lock (FnLk) on Thinkpad T440s work well with Linux? - Unix & Linux Stack Exchange keyboard - Does the Fn Lock (FnLk) on Thinkpad T440s work well with Linux? - Unix & Linux Stack Exchange](https://i.stack.imgur.com/LpFlC.jpg)