Allow the player to cut a chunk of a derelict, move it around, and reinstall it as a chunk.
Do not allow moving a chunk through a door if both of its linear dimensions exceed the door’s width of 3 cells.
Cutting should only be possible with a laser torch.
Large ship chunks should not be movable without a jet suit or an exoskeleton suit.
This would make shipbuilding and reconstruction more engaging. At the moment, the process is so tedious that after completing the major compartments of a ship, there’s little motivation to continue experimenting with ship designs.