No that's not what I am asking. Actually it completely the opposite.
I have started a game, then I quit to main menu and opened ship designer, designed some ships, corresponding, of course, to the civ I play. Then went back to the game, played quite a few hours and got to the point where I should have seen my ships available in the in-game shipyard. Well, they aren't there.
So my guess is it is because I have actually designed them AFTER the galaxy was created. Now my question is-is there still a way to import them?
UPD: found workarround-I just need to save it OVER some in-game existing design, preferably default.