![](https://lh3.googleusercontent.com/-UO5rTjch__0/WJrkm1GKUaI/AAAAAAAACYs/KIias36IPfktN8d84_Oe5FxHqBxllwKYACLcB/s320/Cattura2.JPG)
When grouping or aggregating multiple elements (like these two red rectangles), if I create an event that changes opacity when I have my mouse over, it triggers when I enter the area delimited by the blue bordered rectangle, not only the red ones. Now imagine how annoying can be this behaviour when I have two elements, one on the top-left and one on the bottom-right. Is there a way to fix this?