Non-Visible Components in Stacked Balloon

I haven't done a drawing from scratch in a while. Today (SW2008 SP4.0) I created a new assembly drawing, and noticed that Inow have a "Non-Visible Components" section in my stacked balloonsproperty manager.

1.) Items that are not hidden are in the list. It is a croppedview, and it appears that those items extend past the crop.

2.) Items that are suppressed are in the list. If I select them, Iget a ? in the Balloon.

3.) Items that are hidden, but not suppressed are not on the list.

So it seems like the intent is there, but no follow through. Whycan't I select hidden items? Why would I want to select suppresseditems? Has anyone gotten better success using this tool?SolidworksDrawings And Detailing