1. Create products scroller with phone number and get Shortcode by following WT Product Scroller for WooCommerce
  2. From WordPress Admin, click on WT THEME_NAME Theme

    global click appearance menu

  3. Here, we will use Base Outline so we can show these global header and footer to all pages and also inherit them on other outlines.
    Click on Layout under Base Outline

    global theme click layout

  4. Scroll down to Top section, click config icon next to the Product Scroller (custom) particle
  5. Replace the Shortcode with yours if necessary and click on Apply and Save button.