You can add a add text to provide warnings and inform the users about any additional information.

1)      Click on the Add Fields in the Form Editor.

2)      Click on Add Text Field in the Quick Fields Section.

3)      The Heading is set at default at ‘Add Text’. You could choose to edit the text according to your requirement.

4)      You can fill a sub heading for the text in the Sub Heading field.

5)      Click on Save.