Important: This plugin is an add-on that requires the Bookly PRO installed and activated. View Bookly PRO page at Codecanyon. Bookly Cart add-on allows your customers to book several appointments at once by placing them in a cart. You are free to show, hide and reorder columns in the cart step, so that to display a cart summary data the way you want. Add ‘book more’ button to your booking form to let your clients return to the 1st step for another booking and pay for all booked appointments in advance.