An extremely silly question, buut...

[geoschmo]

Or maybe an abandon ship order. You lose control of the ship and it sits derelict until boarded by someone. Of course that could be abused. You build a massive fleet and park it some where and abandon it and keep a fleet of cheap boarding ships nearby to take over when needed.

What about allowing you to mothball a ship regardless of whether or not you have a space yard available, but only allow unmothballing with a space yard handy. That would do it, and shouldn't require too much in the way of code changes. Just remove what ever flag tells it you have to be at a space yard.

Geoschmo