``` /* * One Column Dashboard * * source: http://wordpress.stackexchange.com/a/29307/2015 */ function so_layout_columns( $columns ) { $columns['dashboard'] = 1; return $columns; } add_filter( 'screen_layout_columns', 'so_layout_columns' ); function so_layout_dashboard() { return 1; } add_filter( 'get_user_option_screen_layout_dashboard', 'so_layout_dashboard' ); ```