I am looking at purchasing a used GC2 with HMT and the current owner has the FSX 2018 software but he has no disc and it is installed on his computer that he is not selling - so if I can get the activation codes would I be able to obtain the FSX software and download the newer version of FSX2020 or have the owner update it first then what would be the steps in being able to obtain the FSX software so I can use on the GC2 if I purchase the unit