Functions- Send Email

I am very excited about the Functions in Creator.

I tried out the send email custom function to send an email to selected records. It worked.

My question is, how do I customized the email body message. I could not seem to format anything to even make a greeting and paragraphs.

I am also wondering if I can customize the sent from field to anything but the zoho.admin by creating a custom variable or some other work around.

I am also wondering if I can access field names so that each email is customized.
For examples, "Dear" + name + " , I am happy to tell you registration is confirmed for" + event_date "."

Thanks for your feedback.