I know newer Apple keyboards no longer has this key, but the key I'm talking about is the one below F14 in this picture:
And if you have a PC keyboard, the Insert key will function as the Help key by default.
When I hit the key, the mouse cursor will become a question mark. But nothing will happen no matter what I click on the screen.
Can someone please tell me how exactly this key is supposed to work?

And if you have a PC keyboard, the Insert key will function as the Help key by default.
When I hit the key, the mouse cursor will become a question mark. But nothing will happen no matter what I click on the screen.
Can someone please tell me how exactly this key is supposed to work?