I haven't heard about such widget, but the way sure exists.
In short:
1. For every issue (feature) that you want to identify, you need to define the hotspot (transparent image in the graphics layer) and request from the server the data that you'll want to display.
2. For each hotspot define the ToolTip (You may find the very useful example on how to use ToolTipManager and panel in API samples, MapTips).
3. Sure, you need to recreate all this on map.changeExtent
So it is not veeery simple and quick, but it is definitely possible.
Hope, it helps.
Regards,
Genandy