Some users working on several tabs in browser with Manager.
They compare data, copy paste, etc…
Let’s assume that user Bob works on tab A (with input form) and tab B with some report. After he filled input form he trying to save his job. But session is expired, Bob loose information. Need to re-login and start doing again.
My proposition to show session timer on each tab for user. In this case everyone will see how long time they can stay on tab until session end.