The Layer Menu
The layer menu is the group of operation for managing layer, which the behaviour of each menu is similar to each button on the layer window.
| Create | The same as  button. |
desc. |
|---|---|---|
| Copy | The same as  button. |
desc. |
| Delete | The same as  button. |
desc. |
| Unify | The same as  button. |
desc. |
