"Current User" tokens for Email Assist

I have a request from the client to be able to send out Email Assist emails using the "Current User" strategy which can be see in reports, etc. Essentially what they want is to be able to create a template with a "logged in user" token that grabs the current uses "ID" and then looks up to the fields on the user table. 

FYI: A key requirement here (which is in another feature request) is to be able to pull the field "phone" off the user table which doesn't appear to currently be possible.