Launch Map Viewer and Map Extent

Hello,

I am using the default Map Viewer (Flex). When I click on "Add To Map", the initial extent of the Map Viewer is the global extent rather than the data extent. Actually, I can manually zoom to the data extent by extending "More..." and click on "Zoom to" on the data layer searched on the Geoportal.

But I want the Map Viewer (not search map) to zoom to the data extent automatically.

Please, let me know which file I should check.

Thank you for your advice in advance!
Rick