How do I select an object overlapping another?

I have this mouse event when I click on an object it toggles a certain variable to true..

The situation is when two of these objects are overlapping and the cursor is overlapping both objects, and I click, it toggles both of their variables..

How do I toggle the value of the one object overlapping the other or one with a higher Y value?

On the collision event, you can pick the individual objects using system pick nth instance. Instance 0 is one of the objects and Instance 1 is the other one. In this way you can split them out and apply the actions to the overlapping objects separately.

Here's an example,

Here's an example,

Useful.I got it.

Nice. Thanks, guys.