No doubt this has been asked and answered before; for the Imperial player, when does a special action constitute an attack (as far as the one attack per activation limit goes)?
I understand that the Elite Imperial Officer’s Executive Order doesn’t count as an attack. Some are unambiguous, like Tusken Cycler (“Perform a ‘range’ attack...”. How about Vader’s Force Choke? No attack dice are involved - is the use of attack dice by the figure the key factor?