Unwanted Ships - Scrap / Use To UpgradeGeneral
Hello! Firstly great app! Really enjoying it so far. So my question is; I have some 3/4 star, higher level & perfection ships that I want to use to upgrade a new 5 star Level 1 ship but it wont let me and I dont know why. I have unlocked them but I cant see them when I go to upgrade or scrap. I'm sure it'll be they have to match this or that but I'd like to understand the reason. Ta muchly. J.