It is recommended to save your work often, especially for complex registration forms using the Save Changes button at the top of the screen.   

You can use the Preview button to get an idea of what the form will look like at any time. Note that this preview does not exactly resemble the online form. For example, the "Depends on" visibility will not work in the preview mode. To view your form as the public will see it, open another browser window and paste it into the Registration Landing Page link as described at the beginning of this article.