Toolbar / Icon:
Menu: Layer > Add Layer
Shortcut: Y, A
Commands: layeradd | addlayer | ya
This command creates a new layer. The layer dialog is shown where you can specify the name for the new layer and adjust its attributes.
In addition, you can choose if objects on this layer can be snapped to and
if this layer should be printed.
A layer can be made a sub-layer of a parent layer. The layer list will then show a tree structure of hierarchical layers.