Unit Selected

Is there any way to tell what unit is selected by a player? I'd like to be able to manipulate the selected unit in response to "Player 1 selects a unit" event but i don't know how to tell which unit is actually being selected.

I think you can use (Triggering Unit), but the safest way would be to be:

Unit Group - Pick Every Unit in (Units Selected by (Triggering Player))

:D

Awesome, thank you for your help man. Triggering unit works. I'm messing w/ a friend of mine's map and i'm just going to add a trigger to where everything he selects dies. It'll be funny:) Thanks again for your help.