Use layer visibility
One of the principle advantages of using layers is the ability to toggle the visibility of specific layers, turning some off and others on, to create different views. This can be done by toggling layer visibility on the fly or by using layer configurations which can be easily recalled later.
Toggle layer visibility
There are several ways to toggle layer visibility. They are all available from the 
Layers panel.
To show or hide a layer, select the box to the left of the layer's name to toggle its visibility. A layer with an 
eye icon in the box is visible and a layer with an empty box is hidden.
To show or hide a parent layer and all its child layers at the same time, right-click the parent layer and select Show Layer. This toggles the show/hide setting of both the parent layer and all child layers.
To show only one layer, right-click the layer name and select Isolate. The selected layer and its children will be shown and all other layers will be hidden.
Use layer configurations
A layer configuration is a saved state in which some layers are visible and others are hidden. By saving such configurations, Revu makes it simple to switch from one to another without requiring you to toggle layer visibility over and over again.
All layered PDFs have a Default configuration that is automatically loaded when the PDF is opened. The Default configuration is initially set to show all layers but can be changed, if desired. Additional Configurations can be saved as well.
To switch from one configuration to another, select the desired configuration from the dropdown menu on the Layers panel toolbar. Configurations are listed in the order in which they were created.
Save the current configuration as the default
All layered PDFs have a default configuration that is initially set to show all layers. The default configuration can be changed, but it cannot be deleted. When a layered PDF is opened, the default configuration is automatically loaded.
- Toggle the visibility of the layers as desired.
- On the Layers panel toolbar, make sure Default is selected from the dropdown menu.
- Select
Save Configuration and select 
Save Configuration.
Create a new configuration
Configurations appear in the dropdown menu on the Layers panel toolbar in the order in which they were created. If you want the list of available configurations to appear in a specific order, be sure to create them in that order.
- Toggle the visibility of the layers as desired.
- Select Save Configuration and select
New Configuration. - Enter a Name for the configuration and select OK. The name is added to the bottom of the list in the dropdown menu on the Layers tab toolbar.
