To Copy an Item Between Layers
1. Click 
or in the Model Tree navigator window click 
and then click Layer Tree. The Layer Tree opens.
or in the Model Tree navigator window click and then click Layer Tree. The Layer Tree opens.2. Right-click the items to copy and click Copy Item. The item or items are copied to the clipboard.
3. Select one or more existing layers or click New Layer to create a new layer.
4. With all destination layers highlighted, click > (or use the right mouse button). The item or items are placed on the layers.