When you create several free-form geometries on a secondary layer, you can change the order in which they are drawn, or layered in the scene. This affects the resulting image because a geometry with a higher priority has precedence over one with a lower priority. You can use the priority order to create complex colour effects involving multiple geometries.

To set the priority of a mask:

1. Select the geometry.
2. Enable Schematic to display the priority order buttons.

   
   

   (a) Priority order buttons  

3. Do any of the following.

   Click:	To move the geometry:
   	To the top layer.
   	To the bottom layer.
   	Down one layer.
   	Up one layer.