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How to change the number of columns for product thumbnails.

Please open wp-content/themes/kingler-theme/plugins/plugin.woocommerce.php file via FTP and on line 560 please replace the number of columns in the following piece of code:

// Number columns for product thumbnails
if ( !function_exists( 'kingler_theme_woocommerce_product_thumbnails_columns' ) ) {
    //add_filter( 'woocommerce_product_thumbnails_columns', 'kingler_theme_woocommerce_product_thumbnails_columns' );
    function kingler_theme_woocommerce_product_thumbnails_columns($cols) {
        return 4;
    }

Replace 'return 4' with 'return 6', for example:

// Number columns for product thumbnails
if ( !function_exists( 'kingler_theme_woocommerce_product_thumbnails_columns' ) ) {
    //add_filter( 'woocommerce_product_thumbnails_columns', 'kingler_theme_woocommerce_product_thumbnails_columns' );
    function kingler_theme_woocommerce_product_thumbnails_columns($cols) {
        return 6;
    }