Thanx Fyron
It clearly answers the first question
Done some research and found:
1) the answer to my second question which is yes.
2) that drones can move into another system and continue with its instructions providing there is a "spotter" there. Like either a planet, ship etc.
But another question. Since a spotter is needed, can another race serve as the spotter under a military alliance? The manual (page 74) talks of "share all Military information (what they can see)" This would seem to imply another race can serve as a spotter.
And finally, can drone instructions be changed? I seem unable to do so. But one thread spoke of having to give the drone instructions each turn.
Any assistance on the above would be appreciated