There are two ways to create a form. You can either create one in Automations by clicking the “Create form” button at the bottom right of the “Forms” section, or register the form on your Web-Builder-based website. For the latter, open your form widget’s properties, and click “View submissions” on the “Form submissions” tab.
Either way, the dialog you are then presented with lets you specify most of the relevant properties of the new form. You can complete the form settings later on the form’s “Details” tab.
