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It attack moves i.e. your units (eventually) move to the selected location, but attack everything they can on the way.
Kind of a late response on my part, but - what do you mean? Only attack move I can find is in "Unit Control Hotkeys", defaults to 'a' and seems...
Can 'alt+right click' attack move command be disabled? It is extremely annoying to me, as I am using 'alt' as a push-to-talk key.
I know it wasn't a feature in original game but it would be really nice to be able to reset the milestones (e.g. for some EP cost).