Layer Order tab

The Layer Order tab changes how Petra orders objects in different layers.  Layers at the top of the list are plotted before (and underneath) layers coming later in the list.

The Overlay Layers' Layer Order tab

- These buttons move the selected overlay layer up or down in the list.

- These buttons move the selected overlay layer to the top or bottom of the list.

- This button resets the view order to reflect the layer order.  As an example, this will move layer 1 to the top of the list, layer 2 to second place, and so on.