This is possible for those whose browser supports JavaScript (enabled in the browser configuration) and who have JavaScript enabled in the Dragon user profile.
 
Double-clicking on a row at a place where there is no link in a table listing, e.g. the running games list, will highlight the row. Another double-click reverts the highlighting. This can be done on more than one row at once.
 
The highlighting is not preserved when you reload the page with the same or new content.