Adding or removing layers

Adding:

1. In the Layers menu, click the New Layer
2. If you want a similar layer to the one you already have, click the Duplicate Layer button. 
   

Removing:

1. Select the layer you wish to remove.
2. Drag the layer to the Trash can at the bottom of the Layers window. 
   *The different layers can be found within the toolbar on the right-hand side of the screen