Event Response: Target of Spell?

Is there an event response: target of casted spell in the WE, or is there a workaround?

Can you state it more clearly?

E: spell is cast
C: event response - targeted unit <- try this...
i think there's something like effected unit...i'll look it up :)
after looking up: i was sure i saw that one somewhere.....WEU :)
try downloading WE unlimited, or improvise

(this was written before lookin in WE)
or u'll just have to use
E: unit is issued order targeting a unit
C: targeted unit.....

Thank you for your help.