Teşekkür ederim @Empat; fakat tek kelime çevirisi için eklenti kurmak istemedim.
@SemihC; teşekkür ederim yardımlarından dolayı. Tema dosyasının Child temasında, function.php içerisinde kod yazarak çözdük.
gerekli olur veya birileri electro temasında kullanır diye kodu bırakıyorum.
Kullanmak isterseniz, kodlar içerisindeki "1Değişen1" değerini orada yazmasını istediğiniz değer ile değiştirmeniz gerekir.

if ( ! function_exists( 'electro_wc_products_per_page' ) ) {
    /**
     * Outputs a dropdown for user to select how many products to show per page
     */
    function electro_wc_products_per_page() {
        
        global $wp_query;

        $action             = '';
        $cat                 = '';
        $cat                 = $wp_query->get_queried_object();
        $method             = apply_filters( 'electro_wc_ppp_method', 'post' );
        $return_to_first     = apply_filters( 'electro_wc_ppp_return_to_first', false );
        $total                = $wp_query->found_posts;
        $per_page             = $wp_query->get( 'posts_per_page' );
        $_per_page             = electro_set_loop_shop_columns() * 4;

        // Generate per page options
        $products_per_page_options = array();
        while( $_per_page < $total ) {
            $products_per_page_options[] = $_per_page;
            $_per_page = $_per_page * 2;
        }

        if ( empty( $products_per_page_options ) ) {
            return;
        }

        $products_per_page_options[] = -1;

        // Set action url if option behaviour is true
        // Paste QUERY string after for filter and orderby support
        $query_string = ! empty( $_SERVER['QUERY_STRING'] ) ? '?' . add_query_arg( array( 'ppp' => false ), $_SERVER['QUERY_STRING'] ) : null;

        if ( isset( $cat->term_id ) && isset( $cat->taxonomy ) && $return_to_first ) :
            $action = get_term_link( $cat->term_id, $cat->taxonomy ) . $query_string;
        elseif ( $return_to_first ) :
            $action = get_permalink( wc_get_page_id( 'shop' ) ) . $query_string;
        endif;

        // Only show on product categories
        if ( ! woocommerce_products_will_display() ) :
            return;
        endif;
        
        do_action( 'electro_wc_ppp_before_dropdown_form' );

        ?><form method="POST" action="<?php echo esc_url( $action ); ?>" class="form-electro-wc-ppp"><?php

             do_action( 'electro_wc_ppp_before_dropdown' );

            ?><select name="ppp" onchange="this.form.submit()" class="electro-wc-wppp-select c-select"><?php

                $products_per_page_options = array_slice( $products_per_page_options, 0, 4 );
                foreach( $products_per_page_options as $key => $value ) :

                    ?>
                    <option value="<?php echo esc_attr( $value ); ?>" <?php selected( $value, $per_page ); ?>>
                        <?php
                            $ppp_text = apply_filters( 'electro_wc_ppp_text', __( '1Değişen1 %s', 'electro' ), $value );
                            esc_html( printf( $ppp_text, $value == -1 ? __( 'All', 'electro' ) : $value ) ); // Set to 'All' when value is -1
                        ?>
                    </option>
        <?php

                endforeach;

            ?></select><?php

            // Keep query string vars intact
            foreach ( $_GET as $key => $val ) :

                if ( 'ppp' === $key || 'submit' === $key ) :
                    continue;
                endif;
                if ( is_array( $val ) ) :
                    foreach( $val as $inner_val ) :
                        ?><input type="hidden" name="<?php echo esc_attr( $key ); ?>[]" value="<?php echo esc_attr( $inner_val ); ?>" /><?php
                    endforeach;
                else :
                    ?><input type="hidden" name="<?php echo esc_attr( $key ); ?>" value="<?php echo esc_attr( $val ); ?>" /><?php
                endif;
            endforeach;

            do_action( 'electro_wc_ppp_after_dropdown' );

        ?></form><?php

        do_action( 'electro_wc_ppp_after_dropdown_form' );
    }
}