use ability with trigger!

[CrazyOPOSSUM]

i have search a lot a trigger for use an unit ability, but i havent find anything...
how can i use an ability with a unit with trigger?

 

[DarkShadow]

It's the "unit - issue order" action. Which one you have to take differs from ability to ability. btw if you wanna order a unit to use a custom ability,. you have to order him to use the ability the custom one is based of. (or in other words, it's concerning to the ability's order string)