Hi,
This isn't out-of-the-box functionality - but the good news is that it is relatively straightforward to add. There's a sample in the SDK (http://help.arcgis.com/en/arcgisexplorer/1500/sdk/conceptualhelp/index.html#//00020000003z000000) which demonstrates this. You can use the SDK with Visual Studio Express if you don't already have a development environment.
If you weren't looking for this level of involvement just yet - i could build the sample and post on ArcGIS.com for you.
There are also some other great Add-ins available on ArcGIS.com - try http://www.arcgis.com/home/search.html?q=ArcGIs%20Explorer&t=content&focus=tools and look for Query Plus. Select-o-Matic might also be useful to you.
Regards
Mike
Hi,
Try http://www.arcgis.com/home/item.html?id=669ac5da0855466e8a6d6ca4d287ede0
Regards
Mike