Appending to payload with session variable
<p>I am still learning the Mule environment and have one question that I feel is close to a solution about appending a "session variable" to a "payload".  I have used an example that calls the "set-payload" to get back the original payload values.  Now I am trying to simply add a session variable to this "payload" (which is a HashMap).  I have tried the "expression-transformer" and when I get to the "expression" for inserting the new key and its values, I don't seem to be able to bring in the session variable.  If I put single quotes around the variable, it literally puts that as the value (e.g.  returns "sessionVars:jobID" as the value for the "id" key).  Not what to try next or if Mule has an inline way of getting out the value.  Thanks for any assistance/direction on this.</p>
