I've done it with other email scripts so I know the outline.
I guess I need to
- add the fields and label text to the correct frontend template
(copy an existing field snippet and tweak)
- add that field name to the correct form function file for it to include in the notification email to me
( copy an existing line of code and tweak)
So any chance of a nudge on where to find these two, the frontend template and the script?