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4. Click the Control all layers button to control the behavior of the layers in the list. You can turn the layers on or off and expand or collapse the layers. Alternatively, you can use keyboard shortcuts to do the same. Press Ctrl and click the layer check box to turn on or off the layers in the same level. Press Ctrl and click the arrow to expand or collapse layers in the same level.
5. Click the Search button to button to find layers.
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6. Layers in the list are unavailable when zoomed out of their visible ranges.
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