No, he want that when he press F1 key that it open F1 menu only when player have "donator key".
Its simple button in s100001 window with quest like .... IF requested item in inventory then open requested window like s100002.
So first you have to make normal s100001 window with button "Enter Dona Menu".
And then this button you connect with quest that is checking if player has "Dona Key".
So if player have "Dona Key" it will open s100002, if no key in inv it will not open anything or error window.
But that is not so good idea, because players can skip s100001 and and use "donators menu" without key.
Better would be if you make "open" F1 menu so all can see what options they have in Donators Menu, but then you must make each button in F1 "donators menu" so that it will always check for "Dona Key".
Anyway that is better so even if players skip s100001 they still can not use any functions in "donators menu".