Actions "hold fn key" and "release fn key" do not work with Stream Deck


I've defined a button on my Stream Deck that emulates the fn button on my Mac's keyboard:

When the Stream Deck button is pressed, it should hold the fn key pressed as long as the SD button is pressed.

The actions "hold fn key" ("fn Taste gedrückt") and "release fn key" ("fn Taste loslassen") that I've assigned to SD button down and up have no effect.

I've defined similar keys, e.g. for command, which work.

Input Device

Stream Deck XL

Device information:

  • Type of Mac: MacBook Pro 14" Nov. 2023 M3 Max
  • macOS version: 14.5 (23F79)
  • BetterTouchTool version: 4.613

Additional information (e.g. crash logs, related issues, etc.):

See attached trigger file:

stream-deck-fn-button.bttpreset (34.3 KB)