Well there is nothing embedded in the product itself. And in my humble opinion is a feature that would/should be added by Microsoft.
One thing leads to another, and whether this is within your skill set or not can be an issue; particularly compared to a mass email or phone call asking everyone to get out; which of course is imperfect too. Which ends up at the point where most IT professionals work - which is to implement changes in an off hour.
Here is one canned solution put together by a power user:
http://www.rogersaccesslibrary.com/f..._topic151.html
hope this helps.