Yeah a button to stick military ships up for sale would be pretty awesome. That could also lead to more exciting colony revolts since now they are armed with your outdated ships!

<t> Any chance that a "Patrol system" order can be added for fleets? Where the fleet will split up and evenly distribute itself around colonies and bases in the system, and then attempt to converge on any enemies that enter the system? Becuase currently all you can order a fleet to do defence wise ...