A proper layer policy can be very helpful to navigate through drawings. But you also have to create all these layers. With 'Sequential Layer Generator' you can create a number of layer with a sequence in the layer name. By default the sequence is created with numbers but if you want you can also create a sequence with letters or roman numbers. With prefix and suffix options you can build up the layer name. When you set the prefix to "area " and the suffix to "-h" and want to create 10 layers the command will add "area 1-h", "area 2-h", "area 3-h" through "area 10-h". You will not only see them in the layer manager but the command will add a legend to drawing as well.