Now using the symmetry tool adds more parts to a craft, what about linking them?
Adding references with translation and rotation for each linked duplicate could help with performance and not only that but allowing the player to make linked duplications even without symmetry could help when building crafts.
If you link a part or a group changes in one would affect the others at the same time (for example, to have all engines updated at the same time without the need of going through each one independently)
@WNP78 I guess so(?) Something like giving the parts or part an id and then creating a list of duplicates that have just the id and the coordinates and rotation. Somewhat like multiple pointers referencing the same memory slot