In that program 4% was closed for my egr.
If you log for longer you will see egr open up to 30-40% , it wont operate for a few minutes off a cold start and evenwhen upto temp it will probably cycle on and off every couple of minutes.
To confirm operation you can log egr % and actual maf airflow mg/i , in graph mode you should see the 2 appose each other ie egr open to 30-40% maf drop by 100-200mg/i and so on(not sure on actual numbers for 2.4)
For other stuff on engine theres actual and desired parameters, so you can log eg desired fuel pressure and actual fuel pressure, desired maf act maf, desired boost act boost,boost and vnt solenoid , rail pressure and pressure regulator, fuel injector correction (cold and hot)
Are all nice data to have for future reference if car running well now.
Diagnosis is harder if you have no data to compare to,so if you want to play with software it will be invaluable for you or others one day.