units attacking

How can I stop certain units from auto-aquiring attack targets (so they can see enemies but wont automaticcaly attack them)

I still want the units to be able to attack when they're told to

Set their aquisition range low

Note that if you do this in the unit editor with a ranged unit it will screw with its range, so for ranged units you must use a trigger(at least thats how it worked for me)

My unit still attack if i order them to move right next to an enemy unit. Is there any way to change this behavior?

i would work with a trigger that puts the enemy/player group to "neutral" or "enemy" ... if they are neutral, they will not attack. if they are "enemies", they will attack

This is very ez and should solve your problem. Under the Units Object editor click on your unit that you want to change... Then find "Unit Classification" and check "Worker". Once that is checked your unit will not auto attack anything.

Thankyou so much. I couldn't have done my map without that bit of information.

No Problem