How to Email a User Name to the Recipient of Email?

[dbarwi1]

I'd like to email the recipient of an email generated through Cognos Event studio their specific Web User Name.  Any thoughts on how I can send the user name that is specific to the recipient of the email?  Obviously, dropping that object just returns a list of all Web User Names.  I've working through an expression by defining the object but can't come up with anything that works.

Any help would be appreciated!

If it helps, each user that receives the email is listed as a Consumer in Cognos.

Thanks in advance!
Daniel