Have you ever worked hours on fine-tuning class schedule and then right when you are ready to post the schedule, you realize that you are logged out? This has happened to all of us but you can avoid this nightmare.
The time-out session is set to 20 minutes of no activity.
If you have worked for a while and feel it has been a while since you have updated the page, right-click to open up a new tab.
If you have been logged out, you can sign back in.
Once you have done something on the new tab, you can click on the tab with the scheduler on it, and it will be live again.
This "Tip" also works when creating E-mails in the Customer Search & Email Report.