Add a Multi Line Text field by clicking "Add Form Field" and selecting "Multi Line Text"
This is for a Multi Line Text Box, like a Comments box where users can enter virtually unlimited content
1) At the top of the Multi Line Text field there is a Preview. This will update in real-time as you edit this field
2) Field Label is what will be shown above the Multi Line Text Box
3) Instructions for user will appear below the box.
4) Check the Required box if a user must fill out this field in order to submit the Form
5) Default text will show initially, and then be removed when a user types in the box – this field can also be left blank