Actually the question it's a little more complicated than simple adding a value.
What im trying to do is, when I click on an instance of an object, if it meets the conditions to do it. Add a value to a variable from another instance from another object. If I try to add the value to a Global Variable it ends up adding it. If I try another condition (i.e.: Every X seconds) it adds the value to the object variable.
What am I doing wrong?
P.D.: Here's a Link http://imgur.com/uyNUSJs
where you can see the action that I'm trying to work.