In the visualizer your are able to define many layers of module. Each module may be present in one or many layers.

In order to create a layer : Right click + Switch to layer + Create a new layer.

In order to create a user friendly application you are then able to create buttons that allow to jump from one layer to another

1. In the general preferences you need to add an action "SwitchLayer" with as content "require('src/main/grid').switchToLayer(value)".
2. Create a button
3. In the preference os of the button:
   • Specify the text of the action which will be the name of the layer
   • Add an action out: SwitchLayer. This action was defined in the general preferences