The Layer State Manager is a pretty powerful tool I’ve been using to control files with hundreds of layer/sub-layers. I am wondering if the Layerbook can function similar to the Layer State Manager where each state of the book is turning on a variable amount of layers/sub-layers -or- if you have to structure your file to get each state in the Layerbook into a single layer that is in numerical sequence (as shown in the example file).
Sometimes it can be hard to create such a flat/sequential layer structures (as seen in the LayerBook example) when you are depending on the layers to control materials and/or other parameters/characteristics within each unique layer.