I am aware that issuing an attack order also makes the target's ship type a 'preferred target' and that I can use the overview to center the main view on one of a ship type, but I might not want my selection to close with and destroy
this particular target. I just want my selection to use the preferred target logic of 'hey if units of this type happen to be in firing range, please shoot them first instead of other things you'd normally want to shoot'.
Scenarios that spring to mind where I'd want that include dealing with kiting Raptors, telling a Fortress what units I want it to shoot without it trying to move, setting priority targets for Spire capital selections without them fluttering around and throwing off their beam fire, priming my fleet ball-o'-death to shoot guard posts *before* sending them through a wormhole (via the F1 unit guide), seeing an approaching exo-wave and instructing my turrets to focus-fire a Dire Guardian as (or again, even before) it comes through the wormhole, and of course, the scenario you've illustrated where it can be very, VERY frustrating to select an instance of a ship type to kill because its stacked under a bunch of other units.
EDIT: I went ahead created a mantis ticket on this here:
http://www.arcengames.com/mantisbt/view.php?id=15986I know this discussion has shown up before, but those were many versions ago, so I'd think its worth another review!