Hi All - we have never done a FCC or any cruise line so not sure how it works. We are cruising in September and i want to get a FCC to book something in May of 2024 but that window isn't open yet. Do i have to use the FCC within a certain timeframe or can i just leave it open until Disney releases those sailings? Also from reading i can just buy the FCC on the disney app once on-board? Thanks.