Fn key on logitech K 380s

Bugs or Unexpected Behavior
1

Device: Macbook M1 Air
OS: Tahoe 26.1
BTT: 6.117
Keyboard: Logitech K380

Bug:
Fn key from Logitech keyboard is not recognized in almost any way (see fun fact to understand the almost).
Trying to activate an already exist keyboard shortcut it doesn't work and also trying to register a new shortcut with the Fn key in it is not recognized.

Example:
Pressing Fn + A to activate a keyboard shortcut it is not activated.
Pressing Cmd + Opt + Fn + A to register a keyboard shortcut it is recognized at BTT as Cmd + Opt + A

Fun Fact:
I tried in many ways it to work and I found out something intriguing: if I have an already registered keyboard shortcut with Fn + Arrow (like up, down, left, right), the logitech keyboard will be able to activate it.

What I already tried:
Logitech app installed and toggling the Fn function option, toggling the Modifier Keys at osx settings. Uninstall logitech app and set Logitech Keyboard Configuration at BTT.

2

On many Logitech keyboards the FN key is a purely hardware based key that can toggle different functionality of the keyboard but never reaches the system. If BTT is unable to remap it even after you set up the logitech keyboard configuration in BTT it most likely is not possible to configure this key on your keyboard.

Arrow keys are special as they often implicitly contain the function key flag, however this probably won't help for any other shortcuts

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