To control the display status of items in lower-level models, you must first put them in layers in their native models.

Usually, then, you would have to navigate down to each model in turn to change the display status of its layers.

However, if you assign common names to layers throughout the Model Tree, changing the display status of an upper-level layer simultaneously changes the status of those layers of the same name in layers below the one changed. Note that layers of the same name in parallel branches or above the selected one are not affected.