Layers - one of the unique features of KontextMaps. Layers allow you to show and hide your content so that you can create an immersive experience in your live map. 

In the editor view, you can see all the layers you have set up in the layers toolbar. If you select one of the layers by clicking on it, the view of your drawing area changes and you can check which contents will be visible on this layers. To edit the layers, you can open the layers window. 

By clicking the double chevron, you can expand and collapse the window.