AreaAnnotator is an area annotation tool for MicroStation 2004 Edition and later. It lets you annotate an area feature, such as a shape or complex shape element, using a tag set. AreaAnnotator observes changes to the shape and updates the area tag in the tag set automatically.
Please visit the following page for more information:
http://www.la-solutions.co.uk/content/AreaAnnotator.htm
With thanks to Jon Summers for making this application available to the MicroStation Community.