Cannot resize overlay

Hello guys! I am trying to make a widget to show up like “Eat”, “Pick up”, “Interact” but I have some trouble using the Overlay under a Button. I cannot resize it. it resizes to the default dimensions of the biggest child, but I cannot go any further. I want to make the overlay as big as the button. Help?

I want to make the overlay as big as
the button

Select the Overlay and:

314347-screenshot-2020-09-20-011938.jpg

Bruh, that gave me brain damage! Thanks a lot!