Eh , I tried draggin from all directions it doesn't work. Only select one ship at a time.Also would be nice to create groups for eg. group 2 ,press 2 two times and center the camera on that group.
I'm just working on the selection box now, most of the bugs here have been fixed and some new stuff has been added.
UPDATE 4 should be out in a couple of hours.
UPDATE 4 is out! I'll leave this open in the meantime as I need to response to some of the comments but any bugs old or new post in the new thread.