Arrange and manage layer operations let you show/hide, reorder, duplicate, or lock layers.
Show or hide layers to include/exclude layers (and layer objects) in your document and any output. You can also hide/show a selection of layers in one operation, as well as all other layers apart from any currently selected layers.
Any layer can also be reordered in the layer stack to change layer object ordering, or duplicated to improve efficiency. Locking prevents a layer or layer objects from being moved, resized, flipped or rotated (but still remains editable).
Do one of the following:
Drag a layer entry up/down the layer stack. When you see a blue line between two layers, drop the layer to place.
If you pause during the drag procedure, you'll see a preview on the page for the current operation.
The duplicate layer is added above the selected layer.
Select Lock/Unlock again or use the Layer menu's Unlock item, to allow the layer contents or object to be transformed again.