Unit touches immobile unit/doodad, acticate trigger?

is it possible to make it so whe a hero reaches something from move or attack etc, he activates a trigger? I tried 'enters region' but its too messy for this...its a diamond shaped structure so it dun work with square regions...

Just use the Event "Unit comes in aquaintence range" or whatever... then set the range, and there ya go! :P, You're welcome.

whats the basic name of that Event trigger, and what would you recomend for a base range?

I think it's "Acquires a target" in "Specific Unit Event" that he means... Hope it IS a specific unit you're trying to check...

actually he means 'unit - unit in range'