You can add scripts into a block so that it functions on every page of your website. It is not possible to add code directly into the section of your website, so we instead add an HTML block to the site's footer. Follow the steps below to install a sitewide script:
1. Select the Content tab from the gray navigation bar and select the Footer link in the right-hand sidebar under Global Content.
2. Click the green (+) button and select the green HTML block option to add it to the page.
3. Paste or type your code into the large field box:
4. Select the blue Save button, and then the green Publish button to take your changes live!