Hooks - For Developers / Search For Search Home Knowledge Base Customizations Hooks - For Developers wpbd_column_count Show the listings in a set a custom number of columns on the directory pages. Use 1, 2, 3, 4, or 6 columns. wpbdp_listings_class Add extra classes to the main listings page. wpbdp_abc_filter_letters Change the letter and characters included in the ABC filtering. wpbdp_after_render_receipt Add content to the checkout receipt. wpbdp_before_category_page Add content at the top of the category pages. wpbdp_contact_form_output Make changes to the contact form on the listings pages, or completely replace it.