Considering you are on LN there is probably a better way to do this, but in 4c4 if I had to do something like that then I would just write a little function to run the other report to a file and get it from there. Or I would take the code from the other session and include it in the new session or report. I have usually does it this way - just add what I need to the new session/report. Of course not always so easy when you do not have source code.
My latest mantra - make sure you have latest stpapi patches and the latest session object. If on LN then please explore the option of using DAL2 functionality.
systems provided free by Baan Board
Play the Google game and help Baanboard get better rankings. Do your part. Click here
to find how.