[Question] Fn key as a modifier? about altsnap HOT 2 CLOSED

Unfortunately the fn key is internally handled by the keyboard itself (hardware level) and cannot be directly used from the OS level. It could be possible with a driver specific to your keyboard but I wont be able to do this.
Otherwise if you want to use a key other than the ususal Ctrl/Alt/WinKey, yu can see the vKey code inside the test window. ie: go to the Advanced tab of the Config, click the Test Window button, then select the test window and hit the key of which you would like to see the virtual key code. Once you get the code of a specific key, you can select it as a hotkey by directly editing the Hotkeys entry in the [Input] section of the ini file.

from altsnap.

Linked in the READ FIRST pinned issue.

from altsnap.