Display Contact Form Horizontally Inline

Here is the help page for extra fields
https://www.fastsecurecontactform.com/how-to-add-extra-fields

Follow previous field:
Version 4.xx: Check this setting if you want this field to show on the form following the previous field on the same line. For example, you could put state, and zip on one line. This feature seems to be limited to two fields, and it is only compatible with the “labels on top” style.