All you need are the "Create eMail" and "Send eMail" steps.
I assume you are getting the number of calls in queue and storing that in a variable. You can then use that variable inside the body or subject of the email.
email = Create eMail ("There are currently " + numcalls + "calls in queue.")
Send eMail (email to emailrecipient)
numcalls -> variable storing number of calls in queue
emailrecipient -> email address of recipient
Something like that....