Are you sure if that is the precise, exact, text of the options ? If yes, they don't belong to GSX, but to some other addon that took the CTRL+F12 key for itself.
And, the GSX hotkey has never been CTRL+F12.
That's the YouControl hotkey which, if you are on an FSDT airport with a YouControl menu, will call the YouControl menu for that airport, with one of the options being the ability to call GSX. If, instead, you are not on an FSDT airport, the CTRL+F12 will jump directly to GSX. Provided, of course, no other addon took that key.
The GSX hotkey, by default, has always been CTRL+Shift+F12.