Pasting entities copied from a tugboat is hard currently, as the tugboats move:

• they change coordinates, so using pasteback is a no-go, as you cannot park the tugboat to the exact same coordinates even on the same map
• they float up-and-down with the sea waves, so the default paste is near impossible to get the timing right

A solution would be to copy and paste entity subcoordinates on the tugboat anchored to the main tugboat coordinate, so the doors and everything else would be the right place. This would need a new argument for the commands.

Please consider, thank you!