Go to Appearance > Customize >Alnilam theme options > section two more-news Under section two more-news you can add three news sections.
You can customize,
Left
Section two left header
Alnilam more news left image
Section two left post heading
Section two left news post text
Middle
Section two middle header
Alnilam more news middle image
Section two middle post heading
Section two middle news post text
Right
Section two right header
Alnilam more news right image
Section two right post heading
Section two right news post text