Select all objects on the layer

Alt-click layer name

Option-click layer name

Show/hide all layers but the selected one

Alt-click eye icon

Option-click eye icon

Select Outline/Preview view for the selected layer

Ctrl-click eye icon

Command-click eye icon

Selects Outline/Preview view for all other layers

Ctrl + Alt-click eye icon

Command + Option-click eye icon

Lock/unlock all other layers

Alt-click lock icon

Option-click lock icon

Expand all sublayers to display entire hierarchy

Alt-click expansion triangle

Option-click expansion triangle

Set options as you create new layer

Alt-click New Layer button

Option-click New Layer button

Set options as you create new sublayer

Alt-click New Sublayer button

Option-click New Sublayer button

Place new sublayer at bottom of layer list

Ctrl + Alt-click New Sublayer button

Command + Option-click New Sublayer button

Place layer at top of layer list

Ctrl-click New Layer button

Command-click New Layer button

Place layer below selected layer

Ctrl + Alt-click New Layer button

Command + Option-click New Layer button

Copy the selection to a new layer, sublayer, or group

Alt-drag selection

Option-drag selection