I've finally managed to work through almost all the interface complications. Planets in the star system now have labels, and the little ships have various useful interface elements, including drop-down menus.
In the close-up, you can see a ship, its number, and its open destination-selection menu. Of course, none of this is polished, and the ship interface will look very different later. The important thing is that I got through a lot of tricky details, server objections to implementing them, and similar problems.
The labels disappear correctly when they move off screen and respond correctly when either the object or the camera moves.
