Thread:Project:Support desk/Multimediaviewer extension - how to use description rather than image filename

I installed Multimediaviewer and CommonsMetadata extensions and all is working fine but when I click on an image I'd like it displays the description of my image as title instead of the actual image filename.

When viewing a picture, I can the see description of my image if I scroll with mouse but I'd like to see it without scrolling, description replacing picture filename I don't want displayed.

Thanks mediawiki-1.24.1