[galaxy-user] viewing data live while tool is running

Hi, I am a relatively new Galaxy user. I am wondering if there is an example of a tool which allows users to view at the stdout/err of a tool live while it is still running to get a sense of progress it is making. The tools I have had experience with so far will save the stdout/err or an elaborate report as they are running and those results would be available for users only after the tool has completed running. Admittedly I have not searched through the toolshed exhaustively. Best, -- Ketan