You can set a tab for a single field or multiple fields.

The tab styles can be found in the Styling section of the app settings.

To create a tab icon, you can use either SVG HTML code or a base64 image embedded within an HTML img tag in the heading field.

For SVG,

For HTML,

If you want multiple fields in a single tab then uncheck the field heading as a tab and Empty the field heading. Until the next field heading, all the existing field elements in the middle will be grouped in a Tab.