To setup a form, simply head to a section on a page where you want to place it. There you want to click the '+ element' button in the top right corner or press the '+' icon.
Once clicked upon you'll see a slide-out sidebar. Here you can scroll down and select the 'Form' option:
Simply drag the form element into the box or area you want to place it. After doing that you'll be show the form box. Here you can add fields, labels, webhooks and email settings. Also you can edit your form styles.