jrvip1, if you are talking about the 'Highlights' feature, you can add highlights by:
1:: signing into the account that the synth or pano was uploaded with,
2:: opening that synth or pano,
3:: clicking the [ Edit this Photosynth ] or [ Edit this Panorama ] button below the lower edge of the viewer,
4:: clicking on the 'Highlights' tab in the editor,
5:: navigating to the spot that you wish to add a highlight to,
6:: clicking the [New Highlight] button,
7:: resizing the highlight box to frame your subject as you wish,
8:: clicking the [Add] button, and
9:: clicking the [Save] button when you are through.
You can add a title and short description for each highlight, if you wish, as well as adding as many highlights as you want (though a moderate amount is wise), reordering the highlights you have already created, or removing some if you decide you don't like them. Just be sure to save when you're finished editing.