In the properties of any object we find a flag called "Displays the title of the object on the video output" followed by a position selector on the screen. This flag overlays the object title (or other parameters) on the video.
The object title is specified in the "Properties" section
If the Title box is empty, the title of the playlist or time sequence to which the item belongs is displayed.
The font size is adjustable in Setup \ Video \ Options 2 \ Text Overlay
It is also possible to specify WILDCARD WORDS TO CUSTOMIZE EXPORT instead of static text. Any wildcards should be written in the "Comment" box (instead of "Title)
In this example I have inserted the wildcard %isrc% into the type of a song object so that when the song is played the isrc code of the song is displayed.