What does clicking a layer in the right side of the widgets page do?

Topics: General
Nov 13, 2013 at 9:28 AM
It is unclear to me. I now how to select a layer in the dropdownlist, add widgets, but some layers in the list on the right side are clickable, and when I click a layer, something happens. But what? What is the functionality of that list? I can't find this anywhere in the documentation.
Nov 16, 2013 at 7:25 AM
It toggles the visibility of the widgets in those layers.