Action for widget on a ScrollBox

Hi everybody

I follow this guide to create a scrollable box with different buttons:

And now I’m blocked. I want my buttons to be interactible with an actor. I’d like to change material of an actor through the ScrollBox.

Here’s what an actor do at the moment:

And I’d like to do the same for all the new button I created through the guide

Can someone help me?
Thank you all


you need create a sequence when the actor click on the button set material.
asssin on clic or on pressed button.

Can you explain me better? I have created the menu with all the button through the array but i don’t know now how i can set different materials to different buttons