Upload folder path
This field determines the default file upload folder for all file upload fields.
Upload folder URL
This field determines the default file upload URL for all file upload fields.
Max File Size
This determines the maximum size of files that can be uploaded through the UI and through your forms. The filesize options available in the download relate to your server; the maximum option in that dropdown is the maximum size that files can be uploaded as determined by your php.ini file.
Permitted File Types
This determines what file types can be uploaded.
Use Lightbox to display files
This option can be helpful if you're only upload images through your file fields. It opens all files in a Lightbox popup.