Managing 3D models is not as easy as it seams. 3D editors use different measuring unities and even space coordinates... In Alone in Space, structures need to be placed on a invisible grid. That means they must not get too big. But they also need to fill as much space as possible.
To handle this problem, our saviour is the ratio! You can display a 3D object with a given ratio to get it bigger or smaller. However, this is still a problem as each model needs a custom ratio.
So I made a tool inside the game to play with models ratio and define the best for each one:
That's not intended to be usable in the final game but this could be handy for modding...