The contents of a layer can be viewed directly in the Layers panel. The layer contents view displays the
name of the layer, a list of all Actors contained in the layer, and information about the layer's contents.
To enter the layer contents view, press the See Contents button at the bottom of the Layers panel with the layer you want to view selected.
The name of the layer is displayed at the top along with a collection of buttons showing the various types
and numbers of Actors contained within the layer.
The various buttons to the right of the layer's name show how many of each individual type of Actor are contained
within the layer. For instance, the button in the bottom right of the Layers panel informs the user that
there are 139 StaticMeshActors contained within the layer.
To return to the layer list, press the button.