panel menu to open the Layer Options dialog box.
- Double-click the new sublayer name (Layer 5, in my case), change the name to Main Menu,
and then press Enter or Return.
Creating a new sublayer opens the selected layer to show existing sublayers and content.
Click the disclosure triangle ( ) to the left of the Phone Content layer to hide the content of
the layer.
Drag the left edge of the Layers panel to the left to make it wider.