Can't move ships

I cannot seem to move the ships. The tend to meander all over the battlespace. The manual states you can drag them, but whenever I click and try to drag them onto alternate vectors, the entire screen moves. Any help that would help me direct these ships would help. I know the orders piece (although any orders I give go out to the entire class instead of individual ships).
Is there maybe a ‘beginner’s guide’?

If this is during the battle itself - you cannot move them. There is no input after the battle starts and you have to rely on how you ordered them. If they meander a lot I suggest you remove the attack fighter option on cruisers.