Design Layer Visibility
To toggle the visibility of a layer, right-click on the name of the layer in the Design Data pane and select Visibility > All or Visibility > None.
You can also toggle the visibility of multiple layers (and nodes) using a button on the local toolbar in the Design Data pane:
This command is also accessible via the Quick Access Toolbar. See: Design Panel Commands
Toggle Explorer
In the Design Data pane, you can also toggle the visibility of all layers and nodes, or only show those layers and nodes that are loaded in the Design Window or the Animation View.