Reference Views
Reference views are present in the two- and three-panel modes. The 
or 
button at the top right of the main view allows you to choose a 1x2 configuration with two reference views, or a 2x2 configuration with four reference views.
The reference views are displayed to the left of the main view.
Navigation is not possible in the reference views. Each view's point of view is updated automatically whenever the point of view is modified in the main view.
Reference views save a reference configuration that can be compared to other reference configurations and to the current configuration in the main view. Unless a reference view is active, its configuration is not updated when configuration options are selected in the main view.
To make a reference view active, or to deactivate a reference view that is already active, click on the view. You can tell when a reference view is active: active reference views have a gray border.
Reference views can also be associated with an image that will be displayed in the complementary panel whenever the reference view is active if you are using the three-panel presentation mode. Click on the 
Image button to choose a document available in Lumis 3D. This function is only available when using the three-panel presentation mode. In one- and two-panel presentation modes, the complementary panel is hidden.
Tip
How to: Set a configuration in a reference view
By default, reference views display the product's default configuration. There are several ways of modifying the configuration in a reference view.
Method 1
Drag and drop a configuration preset, a configuration bookmark, a configuration macro, or a configuration parameter value onto a reference view. The configuration in the reference view is updated.
Note
Dragging and dropping configuration presets or bookmarks is the recommended way of initializing reference views because this method will also list the name of the preset or bookmark in the upper left-hand corner of the reference view.
Method 2
Make a reference view active by clicking on it. The active reference view is indicated by a gray border around the view. When a reference view is active, it is displayed in the main view.
Modify the configuration of the main view. The active reference view is updated automatically with the new configuration.
Click on the active reference view again to deactivate it. The gray border will disappear, and the current configuration is saved in the reference view.
Method 3
Drag and drop one reference view onto another. This duplicates the reference view's configuration. The configuration in the first reference view is saved in the second reference view.
Tip
How to: Show a reference view's configuration in the main view
To show a reference view's configuration in the main view, drag the reference view, and drop it on the main view. The main view is instantly updated to use the reference view's configuration.
Note
You can also activate a reference view to show it in the main view. However, when a reference view is active, modifications made in the main view are automatically saved in the reference view as well. You can tell when a reference view is active: active reference views have a gray border. To make a reference view active, or to deactivate a reference view that is already active, click on the view.