Set Merge icon

<svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor"><path d="M2 7V9H7V7H2M12 9V11H9V13H12V15L15 12L12 9M17 9V15H22V9H17M2 11V13H7V11H2M2 15V17H7V15H2Z"/></svg>

set-all
set-left
set-none
set-right
set-center
set-square
set-top-box
set-left-right
set-left-center
set-center-right
set-split

Set Merge icon

More Material Design icons