Layers can be seen as transparent films to draw individual parts of the drawing on. For example, one layer can be used for brickwork, another for wiring, another for heating, etc.
The Layers panel is used for switching through layers. Select the active layer (currently used in the drawing) from the list.
Electrical circuits should be drawn in one layer (they should not be divided into several layers).
- moves a layer up.
- moves a layer down.
- adds a layer.
- renames a layer.
- deletes a layer. Only empty layers can be deleted.