To add an on screen 'timing out' or warning notice to avoid loss of work.

Nothing more annoying than losing hours of work because KASHFLOW has secretly timed out while you've been typing away, and you don't get to know this until you remember to 'save'; only to be directed to the LOGIN page!!!!! Which is when you lose all of your work. Surely a cruel and unnecessary situation. 

There are many reasons why you may have to stop inputting, working or leave your desk; or even work for long periods of time without remembering to 'save'. Please fix this.