the shipyard needs a cancel button its been 3 years! you can stop research and,building this is the worst fault of the game

Mmm it would be nice but it would also make hiding resources WAY too easy, you just spam ships/defenses and cancel them later and no one would be able to touch them cuz they'd be tied up in builds

but it would stop you from spending you resources on something you dont need

a way to stop that is if you cancel the build you lose 30% of the res spent.