This is really great advice - I have lost count of thenumber of times I select a creature with left click, then right click in the same place to get the graphical menu to choose attack, and it just deselects the creature.
Actually this happens a lot with all npcs - right click seems a lot harder than left click - you have to click in exactly the right place I guess. :/
Anyway, I never knew about the attack command, so good suggestion. Can we give rep on this forum?