The history shows log entries created by the system, by agent and by user.
 
 

 
 
Click on a log entry to open it. Additionally, you can click the expansion icon to bring up full history in a separate window, focusing on the history listing you've selected:



 
You can also use the expansion icon that shows the full history of the case:      
 


Full log:


 
 
When you open a history log that is an email, you can use the answer icon     to reply to this email:
 

 
  You can also print the log entry