As the question implies, I need some help about the f-keys, more specifically with the f9 key. I have a program that runs in terminal, and I need the f9 key to be completely function-less in order to work properly with it. Even with the f-keys standard function option enabled, if I press f9, happens the same thing that would happen by pressing f3 without the standard functions option enabled. A similar behavioris shared also with f12, that when pressed, gets me instantly to the dashboard. Just do you know, my Mac runs high Sierra. Notice that I did try to press fn+f9 but that just doesn't work. Also, if anything's unclear, I will try to explain myself a little better.
Thank you for your help.