Inside the plugin folder check for File: jigoshop_taxonomy.php
Line no: 120
You will see
register_post_type( "product",
array(
'labels' => array(
'name' => __( 'Products', 'jigoshop' ),
'singular_name' => __( 'Product', 'jigoshop' ),
'all_items' => __( 'All Products', 'jigoshop' ),
'add_new' => __( 'Add Product', 'jigoshop' ),
'add_new_item' => __( 'Add New Product', 'jigoshop' ),
'edit' => __( 'Edit', 'jigoshop' ),
'edit_item' => __( 'Edit Product', 'jigoshop' ),
'new_item' => __( 'New Product', 'jigoshop' ),
'view' => __( 'View Product', 'jigoshop' ),
'view_item' => __( 'View Product', 'jigoshop' ),
'search_items' => __( 'Search Products', 'jigoshop' ),
'not_found' => __( 'No Products found', 'jigoshop' ),
'not_found_in_trash'=> __( 'No Products found in trash', 'jigoshop' ),
'parent' => __( 'Parent Product', 'jigoshop' )
),
'description' => __( 'This is where you can add new products to your store.', 'jigoshop' ),
'public' => true,
'show_ui' => true,
'capability_type' => 'post',
'publicly_queryable' => true,
'exclude_from_search'=> false,
'hierarchical' => false, // Hierarchial causes a memory leak http://core.trac.wordpress.org/ticket/15459
'rewrite' => array( 'slug'=> $product_base, 'with_front'=> false, 'feeds'=> $base_slug ),
'query_var' => true,
'supports' => array( 'title', 'editor', 'thumbnail', 'comments', 'excerpt',/*, 'page-attributes'*/ ),
'has_archive' => $base_slug,
'show_in_nav_menus' => false,
)
);
Update it as needed.