How to expand the width of an element to fill an empty column

As you can see in the following image, there is an empty column as part of a row with content. I want to get the “Latest Articles” element to fill the entire width. How do I do this?

https://pasteboard.co/tGKK6TiVEC2c.png

Thank you

I figured it out.

You click on the column with content to edit the settings. Turn “Occupy remaining space in row” to “On,” and set the width at “100%.”