If you are using an identity provider (Token based that does have a time out form the server side) the software can be customized to provide for a re-auth of the token. I will have to check with Development to see if this was made part of the product when using SSO or other IDP authentication. while this does not provide the spec idci use case you have talked about, I can imagine that when your token is facing a time-out that you can program Anywhere to throw a dialog box.
I would not recommend a separate mechanism to kick the user out of the application. Forcing a user to log in when they are offline (for which the tool is designed to operate) makes for a difficult user experience. We designed it this way for a market-based reason. However if you are using an IDP for authentication then the IDP takes care of the situation for you.
Hope this helps.
------------------------------
Bradley K. Downing , MBA
IBM Certified Adv. Deployment Prof. Maximo v7.6.1
IBM
Bakersfield CA
------------------------------