Under the Analysis tab, choose Additional Data Collection. Under Step 1 choose Object and Patient 1. For Step 2, select Patient1 for Based on Object Type. Check the box that says Parameter to Track and choose ObjectLeadTime from the list. For Step 3 choose ObjectCompleted. Then click Add.
Do the same for Patients 2 & 3.
Run the simulation. Under the Analysis Tab again, by clicking Dynamic Data Graphs you can view the results by selecting one of the 3 events you just created in the previous step. Stop the simulation.