Select
the update icon to update the view and it should look like this.
That's all there is to controlling the Layer order.
You can save the set up to be used over and over again.
When new entities are placed on that layer they are already ordered according to the settings file. They are also rendered according to the renderstyle assigned to that Layer.
Try switching a layer off and on from the Layers menu and see what happens. Remember, that what you see in the view window is what will be in the output file.
Producing a different result is as simple as changing the renderstyle or assigning the layer a new renderstyle
Or you could even process the file with another settings and renderstyles file to produce a very specific result for a diiferent client or project.