ORIGINAL: Wade1000
Can such ships be automated to go refill fuel and return to refuel the fleet?
Frankly, I don't know what it does on automation. I don't give my slaves much authority in my empire.
Test it?
I know it will sit in space and when I select the entire fleet I can right-click on the resupply ship and everyone goes and refuels there. The name of the ship pop's up along with the other options (at nearest refueling point, and at your nearest space port). When the ship runs close to empty on fuel in the CARGO, I tell it to go fill up at the nearest gas giant. When it's filled, I order it back to some safespot near the combat fleet.
If the AI is written using a goal driven agent behavior it should and queue/stack the actions.
A note on safety, based on my play the AI seems to concentrate on activities inside systems. Things you do in deep space go largely unnoticed. I have yet to have one my strike forces sitting just a few seconds outside a target system preemptively attacked. Same goes for my logistics slaves. [8D]
p.s. yes, I do add construction modules to my re-supply ships.

