Here is another plugin that lets you accept large orders from your wholesale customers. Wholesale Order Table for WooCommerce shows a list of your products, enabling your shoppers to add multiple items to their cart in one shot.
You can add the product table to your site with a simple shortcode. You can change visibility, table style, header/footer, and promotional badge settings in the backend. The premium version of this plugin gives you even more control on what product data to display. You will be able to display as many columns as you want and stock level warning.