You might be wondering why you can't send emails or text messages from your own email address or phone number. Security, in a word. For now, you can change the from "name" but the email will be firstname.lastname@example.org. Sorry - we know this isn't ideal but it turns out sending email from you is rather dicey.
The Location field in the details email is used for telling your participant where an interview is taking place, feel free to leave blank if the interview is remote or over the phone.