wrong trigger

Hello community

FIrst of all, sorry for my english.

Ive got an problem i cant solve and im wondering why i cant find someone else who has this problem with google.

I want to make an animation with many triggers. Ive import many svg graphics from illustrator. As you can see the green box around the object, is bigger than the object itself.

Now when i want to have all of those as triggers to do some animation, you will trigger the wrong piece because of this white space around it. Even if i try to make an invisible rectangle to be the trigger, i cant transform this trigger in a shape like this pieces.... is there a solution for this?

Thanks for your help!

Marc